corey lewandowski, we are learning more about that right now. he's been let go from the campaign, as we learned just within the last hour or so. we'll have more on that soon, but we want to take you right back to where be started. that is the new details we're learning about what gunman omar mateen said and what he did of course we know during that rampage. the fbi is just releasing printed transcripts of mateen's 911 calls from that night. my colleague, pete williams, is joining me now. pete, what more are we learning from these transcripts? >> quite a bit, thomas. turns out that the police negotiators talked to omar mateen for a total of 28 minutes. we don't learn a lot in the back and forth in the transcript of his 911 call that we didn't already know. he pledged support for isis. he identified himself as an islamic soldier. he told the negotiator to stop bombing syria and iraq and that's why he was here now.

here's a couple of new things. he says there is a vehicle outside that has some bombs, just to let you know. you people are going to get it and i'm going to ignite it if they try to do anything stupid. now, the police say they immediately checked out that van and didn't find any explosives. later in the call he said that he had a vest and described it, quote, as the kind they use this france. so this explains why the police thought that there might be explosives inside. while this is going on about 4:21, the police say they pulled an air conditioner unit out of the wall in a dressing room. that got some more victims out. they say some of the victims came out from the pulse nightclub and told the police that mateen said he was going to put four vests with bombs on victims within 15 minutes. a couple of other new details that come from this information here, thomas, the fbi says based on their analysis of the orlando police radio communications, there were no reports of shots

fired inside the pulse nightclub between the initial exchange of gunfire that happened just after 2:00 a.m. and the time that responding officers arrived and then the final breach. so they say while he was in there in the restroom, there were no further reports of shots fired. in terms of the 911 call, the fbi director a week ago had given us pretty much this information. he called with the 911 operator three times. he gave his -- he said mine -- he didn't give his name. he said my name is, i pledge allegiance to and in the transcript it's omitted but we know that he pledged allegiance to al baghdadi, the head of isis. he said it again and may god protect him in arabic he said on behalf of -- and that's omitted in the transcript. so the main thing we learned here is new detail on what the police had heard from mateen and survivors of the nightclub shooting about whether or not there were explosives.

he said they were in the van. as people came out, he said he was going to put explosive vests on four of the survivors and that he was wearing one himself. of course just to emphasize here, authorities have told us repeatedly that they never found any explosives, either in the van or inside the nightclub, that he was not wearing an explosive vest. this interesting detail about pulling the air conditioner unit out to get some of the people. >> we're learning that it was three hours from the time the first call came in of shots being fired until 5:02 when the the s.w.a.t. and special device team entered that nightclub breaking down the walls to rescue any survivors they could find inside. we're learning about a total of three calls as you were help explaining, negotiation calls that took place. one nine minutes long, another 16 minutes long. the third one approximately three minutes long as this detail communicated to us now from the fbi. it says the shooter hung up and

multiple attempts to get in touch with him, omar mateen, were unsuccessful. the news conference in orlando is starting right now. let's take you there and listen. >> partial transcripts of calls the shooter, omar mateen, had with 911 operators as well as with crisis negotiators with the orlando police department. as the attorney general announced yesterday, these are partial transcripts. redactions have been made to avoid revictimizing those who were in the pulse nightclub during the early morning hours of june 12th. we wanted to release the transcripts at this time so that the public would have a better idea of the timeline during the morning hours of june 12th and also so that you would have a better idea of what the law enforcement officers on the ground were dealing with when they made the decision to enter

the nightclub. the brave men and women of the orlando police department, the orange county sheriff's office, the fbi and others should not be second guessed. they performed valiantly during those early morning hours. lives were saved because of their heroic work. i'd like to say today there will be no questions answered regarding the investigation. it's been one week since the shooting. as you all know, this is a very thorough and comprehensive investigation of the largest mass shooting we've had. the most significant terrorist act since 9/11. no stone is being left unturned. i know that you're impatient for more information. it will be forthcoming in due

course, but today no questions about the investigation. >> can you talk later, sir. >> today there will be no questions answered about the investigation. we're focusing only on the timeline of what occurred during the early morning hours of june 12th. tomorrow the attorney general is going to be in orlando. she's going to be briefed on the ground by me, the others at the u.s. attorney's office, by the fbi. she's going to have a chance to speak to the victims and it's my understanding that unless things change, she will be speaking to the press tomorrow afternoon. you'll get a chance to ask her questions then. but for now i'd like to turn it over to my colleague at the fbi, assistant special agent in charge, ron hopper, and he can give you more details. thank you. >> thank you, united states attorney bentley. good morning, my name is ron hopper and i'm the assistant special agent in charge of the fbi here in orlando, also in charge of the joint terrorism task force, which is conducting

this current investigation. this investigation is one week and one day old and it may last months and even years. but i want you to know that we will endeavor to bring justice to the victims who survived as well as the families of the deceased who were so viciously murdered. as many of us celebrated father's day this past weekend, several were reminded of their lost one and the tragic events that happened on june 12th. before i provide an update in the investigation, i'd like to acknowledge my partners that are here with me today. i'd like to recognize chief john mina who will provide remarks following my comments, orange county sheriff jerry demings, florida department of law enforcement s.e.c. danny banks. assistant in charge jeff walsh, atf trevor velnor, mayor of orlando buddy dyer, mayor of

orange county, teresa jacobs and additional partners including the florida harp, orange county fire department, orlando fire department and many others who assisted us. the joint terrorism task force has released excerpts and portions of the timeline of events that happened inside the club of the pulse on june 12th. you've been provided with a general timeline of the orlando police department's radio communications as well as a 50-second conversation between the killer and the orlando police dispatcher. while we're not releasing the audio, what i can tell you is that while the killer made these murderous statements, he did so in a chilling, calm and deliberate manner. finally, a summary of the communications between the crisis negotiator and the shooter have been provided to you and the chief will take your comments and questions after my

formal remarks. while we will not be providing the 911 calls made by the victims, we're doing this out of ultimate respect. yes, the audio is compelling, but to expose that now would be excruciatingly painful to exploit them in this way. this is an active investigation. it remains an active investigation. while we understand your interest, we appreciate your patience as we find the facts methodically and carefully. as you will see from the transcripts that we've provided just a few moments ago, the killer of 49 and the shooter of 53 others identified himself as an islamic soldier who pledged allegiance to a terrorist organization which was bent on killing americans. he does not represent the religion of islam but a perverted view which based on what we know today was inspired by extremist killers. we currently have no evidence

that he was directed by a foreign terrorist group but was radicalized domestically. as you can see from the information we provided just a few moments ago, the killer stated that he had an explosive device but none was found. i also want to point out the heroic actions of not only the first responders, but the victims who were inside the club that morning. they were under the most inconceivable stress and they bravely assisted law enforcement in bringing it to a resolution. there's no doubt that their actions saved lives. our investigation into the motives behind the killer and anyone who may have conspired with him or supported him continues. please also keep in mind that the investigation of the shooting exchanged between police and the killer is ongoing. i would point out that some have mistakenly rushed to judgment regarding the actions of these brave men and women. what they did that evening and

those early morning hours was nothing less than extraordinary. to give you an idea of the scope of the investigation to date, i want to provide you with a few facts. the joint terrorism task force has conducted over 500 interviews as we sit here today. 117 vehicles were released to owners and ridge strants of family members of victims at the pulse nightclub and we have approximately 10 left to return. more than 600 pieces of evidence were obtained and processed from the crime scene. we've received thousands of tips based on our appeal to the public, and we ask that you continue to call us as 1-800-call-fbi or visit fbi.gov. in closing, i want to advise that we're nearing the conclusion of our processing of the crime scene here outside the pulse nightclub and that we hope to restore the area and the outside perimeter to the community within the early part of this week.

i want to point out special and extraordinary devotion to the effort here by the christ church of orlando, the salvation army and countless businesses in the orlando area that have supported law enforcement and our efforts tremendously as their way of paying respect to the victims of this horrendous act. i'd also like to recognize the tremendous efforts of the fbi's evidence response team who spent the last week processing the most devastating crime scene under circumstances that were very difficult. it's a life-changing experience for all of us and they have done their duty quietly and among the most noble law enforcement professionals. as i mentioned earlier, this area is expected to be restored to relative normal business early this week and we do not expect to hold any further press conferences from this location. thank you. i'd now like to turn it over to chief john mina.

>> thanks, ron. good morning. first, i want to say we appreciate the incredible patience that our community has. we know there are many questions and people want to know what happened that night. the timeline released based upon radio communications clearly shows our officers were within the club within minutes and engaged the suspect in gunfire, and that's important because that engagement and that initial entry caused him to retreat, stop shooting and barricade himself in the bathroom with hostages. so it's important to note that this started as an active shooter situation. our officers took action and then transitioned into a barricade gunman/hostage situation. so after that second exchange of gunfire upon that initial entry of our officers, there was no other gunfire until the hostage rescue operation took place.

so during that three hours, i just want to make sure everyone is clear on that, there was no gunfire. so during that time, our officers were intermittently in and out of that club saving people, rescuing people from inside the club. that's another misconception. we were inside the club along with our fellow agency partners. and at some point during -- as you see on the timeline, our officers were able to push an air conditioning through to one of the dressing rooms and i believe saved eight people out of that room. so i'm extremely proud of the hero actions of our officers, and i am very confident they saved many, many, many lives that night. we continue to concentrate on the security of the crime scene and eventually will open up roadways and businesses, but we ask that people please be patient with us on that. we're also concentrating on the many visuals and events and providing security for everyone and making sure everyone feels

safe as well. also our top priority at the city of orlando is making sure our residents are safe and the reduction of crime. again, i want to thank everyone for their patience as we go through this process, and i also want to thank the community for the huge outpouring of support for our local law enforcement who did a tremendous job in this situation. i'm going to turn it over to orange county sheriff jerry demings at this time. >> thank you, chief. good morning. you've now heard about the timeline of events during the early morning hours of june the 12th. as you've heard, this has been a collaborative effort from the very beginning. i must say that the response of the orlando police department and those initial responding law enforcement officers has been nothing less than short of being extraordinary. one of the reasons why the response was extraordinary is

really because of the overall preparedness to deal with an incident like this. prior to this crisis, our federal, state and local law enforcement agencies have been preparing for this event. in fact for years now we have prepared to respond to a terror event. in recent months, our agencies have been involved in training our personnel to be able to rapidly respond to an active shooter incident. in terms of our overall preparedness, i want to talk a little bit about our partnership with the department of homeland security. in september of 2014, in fact on september the 9th and september the 10th, we participated in a joint counterterrorism exercise that was held here in orlando at the orange county convention center. that exercise was designed to

prepare us to respond to an active shooter situation involving mass casualties. on october the 28th of 2014, department of homeland security undersecretary general francis taylor visited our central florida intelligence exchange which we refer to as our fusion center here locally. this is a tremendous asset to our region because our fusion center, the central florida intelligence exchange, has our federal, state and local law enforcement partners who work daily regarding counterterrorism efforts in this community. during the events of june the 12th, they activated and was successful in disseminating substantial information to our law enforcement partners here within our region as well as across our nation.

the fusion center has continued to be and play a vital role in the efforts since that time. they have been involved in providing daily updates and situation reports to law enforcement partners. they have also provided daily counterterrorism reports and working with the fbi in this investigation. their efforts will continue on a day-to-day basis. i will share with you that in this community the citizens who live here should be confident by knowing that you have competent law enforcement authorities who are able to respond rapidly to any situation that we will be confronted with in the future. however, there are daily efforts to prevent a similar attack from occurring. that will be based solely on the collaboration between, again, our federal, state and local law enforcement authorities. let me move on now and talk just

briefly about the first responders. chief mina mentioned the heroic acts of those first responders. we want to make certain that at this point we do take care of our personnel, because on that day they saw some very horrific things and our goal is moving forward to ensure that they are provided with the difusion as well as counseling sessions to ensure that to what extent we can, we can minimize any ptsd-type effects on them into the future. again, i'm going to conclude by saying that our community remains a safe community and we certainly support people coming in and visiting our community. it is a vibrant community, a resilient community and much of what you have seen in the last few days and hours has been a reminder that this community is

still here and willing and working together to make this a safe place for our families and our visitors here. thank you so much. >> now we'll take questions. >> could you clarify something in the timeline. you said there was no shooting after the gunman -- [ inaudible ] >> there was no shooting for that three-hour period until the commencement of the hostage rescue operation. >> at 4:29 a.m. you said that you learned according to the timeline, you learned -- [ inaudible ] >> well, during that time we were ensuring that our explosive

entry team had set the charge and everyone was ready for an explosive entry, so that does take time. >> special agent hopper, at your last update you asked the public for help trying to figure out the most complete picture of the shooter and why he did it. these transcripts show he told you why he did it, he did it for the islamic state. what good does it do -- [ inaudible ] >> part of the redacting is meant to not give credence to individuals who have done terrorist acts in the past. we're not going to propagate their rhetoric, their violent rhetoric and we see no value in putting those individuals' names back out there. we're trying to prevent future acts from happening again and for cowards like this one, people like that influence them so we're not going to continue to put their names out front. >> does the fbi redact things from transcripts in many investigations? >> i'm not familiar with the other investigations you may be referring to but for this one we think it's highly important.

>> outside the three hours, there were shots fired at 2:08, exchange between the shooter and the police officers. and there were shots fired at 5:14 after the breach of the wall. during those two instances of gunfire, were there any casualties? >> repeat your question. >> outside of the three hours where there's no gunfire in the club, at 2:04 when there was an initial exchange with the backup officers inside the club and at 5:14 after the breach of the wall, the gunfire with the shooter, were there any casualties that result from that? >> that's all a part of the investigation. all of that is being reconstructed at this time. >> you seem very defensive responding to criticism. what are you responding to? >> i don't understand what you're saying. >> you sound like you're responding to criticism of a response. you sound like there's something very specific that you're addressing. i'd like to know what that is. >> absolutely. we received many comments from press and from the public, some

e-mails about, i think there is this misconception that we didn't do anything for three hours. i'm just trying to clarify that that's absolutely not true. our officers were within the club within minutes, exchanged gunfire with the suspect, forced him to stop shooting and retreat into the bathroom. from there, we let our negotiator take over and try to negotiate this to a peaceful resolution in an effort to save lives. while our s.w.a.t. team set up so that's the issue for the clarification. >> how difficult was the negotiations with the gunman? >> was there any what? >> were there any negotiations back and forth with the gunman? >> some of that was released earlier. yes, our negotiator was talking with him. >> how likely is it that some of the victims may have been shot and killed by police gunfire in the initial attempt to save lives? >> that's all part of the investigation, but here's what i will tell you. those killings are on the suspect and on the suspect aflown alone

in my mind. our officers acted heroically and did as they were trained in an unbelievable circumstances and did a phenomenal job. [ overlapping speakers ] >> how difficult was it for you to make this call -- [ inaudible ] tell us about the concern you might have had that this gunman had gotten past your officer, whichever way he did, and -- [ inaudible ] >> the question was how difficult was it for me to make that decision, and i will tell you just as the sheriff said, we have been training for this situation for many, many years, since columbine, since 9/11. i knew our officers were ready. i knew our s.w.a.t. team members were ready. i knew our hospitals were ready. yes, it's a very difficult decision to make but it was the right decision at the right time and i stand by that and would

make the same decision standing here today. >> mr. hopper, other than -- setting the victims' 911 calls aside, the redactions obviously will invite controversy and questions. why would you want to redact anything if it came out of the shooter's mouth? why not let it speak for itself and then bring the analysis in on the back end. >> so i've already addressed that question. we're not going to propagate violent rhetoric that comes from other people, whether they be here or overseas. to do that would only inflame other people here that might be like-minded. >> does florida law allow for that kind of redaction? >> in the other attacks in the orlando area, at what point does law enforcement credit those attacks -- [ inaudible ] >> immediately upon dealing with this situation, we had an intelligence component directed specifically at determining whether or not other threats existed to this area as well as

throughout the united states nationally. i can't tell you that there's a specific finite time when we said everything is fine, the coast is clear. in fact we continue to do that to this day. that's the reason the joint terrorism task force exists as well as the partnerships with our state and local partners. we do that second by second, minute by minute daily so we continue to do that. [ inaudible ] >> were you trying to keep him talking to save people? take us through those moments for three hours. >> absolutely. any time we can engage a suspect who's in a hostage situation, we definitely want to keep him talking not only to peacefully resolve the situation and cause less life to be lost, but also to set up and make sure our teams are ready to enter, yes. >> the second part of my question is how concerned was

the issue -- how much did the concern that whichever way possible -- [ inaudible ] >> there was never a concern that he was going to get away. we were going to take him into custody. >> you set the call out for the s.w.a.t. team about 2:18. how soon was the s.w.a.t. team able to assemble there? why didn't they go in before, say, 3:00 where it looks like on the timeline the gunman first mentioned anything about bombs? >> well, like i said, our s.w.a.t. team responded and set up for all situations. part of that, i'm not going to go into all of our tactics, but i will say it takes time to set up explosives and do an explosive entry. those things take time. >> calls from the witnesses inside the club for those three hour, do you talk about the information that they may have

given you? >> those calls were very vital and that's how we received the information about the explosives, so very vital to receive that information from people inside of the club. >> do you think the motive would have been anything other than radical islamic terror as you look through things about his life, people in his family, things -- do you have any reason to think that he could have gone in to attack for any reason other than acting as an islamic fighter? >> yes, absolutely. we're actually looking into any potential motive. we're not limiting ourselves to coming up with just one motive, we're looking at a myriad of things and that is ongoing, both through social media, friend contacts, people that had only met the individual for one time and that's why we're asking for anybody and everybody that's had any contact with this individual to come forward so we can piece that information together for potential other motives as well. >> can you corroborate any

claims that the gunman was gay? >> there's no determination been made at this time. >> two more questions. >> i wonder how -- i wonder if your officers when the actual shooting was happening were able to access that video and watch the movements of the shooter inside the club? >> no, i can't talk about any video. it's all part of the investigation. >> you talked about -- [ inaudible ] >> no, i can't talk about that at this time. >> that's the last question. >> several witnesses -- [ inaudible ] who else did you speak with? >> we can't comment on that. thank you very much. >> you've been listening to a news conference from orlando as we learn new information about

the terror attack that now took place eight days ago. the fbi and the police chief there in orlando, john mina, answering questions from reporters among other things as they detail this timeline and some of the 911 calls that took place over the course of that day where the shooter was communicating directly with investigators. they now tell us that the shooter identified himself to 911 officials saying i did the shooting. that his calls and in the conversation he maintained a chilling calm and deliberate manner, identifying himself as an islamic soldier who pledged allegiance to isis. again, our justice correspondent, pete williams, has listening along with me right now. pete, walk us through some of the new information that we've learned here about this timeline of events and what some people have raised as questions of that three-hour window where no shots were fired. today law enforcement officials making it clear that doesn't mean they were sitting on their

heels. in fact they were executing their plan as best they could under stressful circumstances. >> peter, that's the essence of today's news. we knew about the 911 calls, we see the actual words, we don't learn thing there. it's the timeline and what police say they are doing. the first reports of shots fired at 2:02. at 2:04, more police officers arrive. they enter the nightclub at 2:08. there's a full callout for s.w.a.t. at 2:18. and then after that they say after that initial shooting, no more shots are fired until they finally breach and punch a hole in the wall. he calls 911, the first call at 2:35. then there are a total of 28 minutes of discussions with the crisis negotiators that go on at 2:48, 3:03 and 3:24. at 4:21, police inside the club pull out an air conditioner and allow more victims to escape. at 4:29, some of the victims tell the police that mateen said

he was going to put four explosive vests on victims within 15 minutes. we also learned that during one of these crisis negotiation calls he had said that there were explosives in his van. they searched that, didn't find any. also said he was wearing an explosive vest, he never was. at 5:02, they punched the hole in the wall and start to get people out. at 5:15, one minute later, they shoot him and he is dead. so that's the news here. the other thing is the justice department and the fbi made a decision not to use the actual words in the transcripts that they have released where he, as we've heard before, praises al baghdadi, the head of isis, talks about isis. this has generated some questions, but what they're basically saying is this is a guy that killed 49 people, injured 50-plus more, why should we amplify his propaganda. >> pete williams reporting for us right there.

pete, joining us now is msnbc contributor and former executive assistant director of the fbi, shawn henry. shawn, i'm glad you're here to help us right now. a lot of the scrutiny around this investigation is focused on this sort of three-hour gap and whether more could have been done. where do you see as sort of the i guess they're not holes but the real source of the investigation is as they monday morning quarterback and see what differently could have been done under extraordinary circumstances like they were in that pulse nightclub eight days ago. >> yeah. i don't see any holes with what i've seen with the timeline. certainly there are a lot of questions, people want to know. they have lost loved ones and they want to understand exactly what happened and is there a way that their loved one could have been saved. clearly this -- this presser today, press conference was really about trying to answer those questions because there has been a lot of criticism. i think when the officers go in, there's the initial shots fired

and that he retreats. the killer retreats to another part of the club. this is what happens. you've got a dynamic entry. you've got shots fired, an active shooter, and then you've got no shots and they have established some contact with him. those tactical officers, their first priority is to save lives. that's what they do. they're trained for it. for years they have been training against active shooters. i've worked with police agencies around the country. this is a key issue. once they have got him holed up in that back room, their key is to try and get hostages released or to get him to give himself up. i think that a lot of what we're hearing about suicide vests, there might be a bomb, there's also the concern there might be other shooters that are somewhere in that club, those officers are thinking very, very strategically. let me be very, very clear. they're actively working for three hours. they're not sitting around waiting for something to happen.

while the negotiators are talking to the killer, there's a tactical team that is preparing to do an entry into that building to rescue people. that is done simultaneously. >> shawn, to be very clear, i mean you can speak to this better than anybody, when a shooter in a situation like this claims suicide vests on some of the victims inside that club, that a vehicle outside is loaded with explosives, a bomb in fact in this situation, they have to take that seriously. you can't afford to allow themselves to be wrong in that case. if they don't take it seriously. >> absolutely right. you've got the lives of victims at risk as well as the lives of the officers. i think what's important to know is when they made that entry ultimately, when they punched through that building using the explosive breach, they had reason to believe that he was going to kill other people. they had felt in my opinion that they had gotten as far as they could with the negotiation and

that lives were at risk and they needed to go in at that very moment. everything i've seen says that these officers did everything that they could do at the time with the information that they had. these people go into work every single day to try to protect citizens' lives. and while you need to look back to see if there are better lessons to be learned, for people to sit back and criticize them, i think that's a big mistake. >> more than anything, it says more than we could possibly imagine about the mind of a killer in a situation like this, how unstable he was to perpetrate such a violent act like this. shawn henry helping us out and my colleague, pete williams, as well. gentlemen, thank you very much. coming up right here live on msnbc, another piece of stunning breaking news today, the announcement that donald trump has fired his campaign manager, corey lewandowski. what we're learning about that decision, how the information was communicated to lewandowski this morning. that's all ahead here live next. ok team,

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breaking news right here from the trump campaign. nbc news confirming that donald trump has fired his campaign manager, corey lewandowski. the shakeup coming at a tough time for the presumptive nominee. trump is facing a brewing rebellion within his party after a series of controversial comments compounded by falling poll numbers, a growing fund-raising gap with hillary clinton as well. katy tur, who heads up all things trump here at nbc, joining me now by phone. katy, walk me through the details as you understand them of how this went down this morning and who ultimately takes over the reins. >> so this was an early morning meeting between donald trump and his family members where he was urged that it was time for corey lewandowski to leave. you mentioned that it the been a bad couple of weeks. the campaign realized that, the family realized that and they realized in order to get better they had to get rid of corey

lewandowski. multiple sources inside the campaign, outside the campaign and close to the candidate confirming that corey was blocking hires, refusing to let the campaign grow and he was at odds with not just the colleagues within the campaign but the rnc on core strategy. he wasn't well liked, multiple sources tell me. lewandowski found out this morning by phone. i'm told by multiple people that it came as a surprise out of left field, if you will, that he didn't see it coming at all. i'm also told by one source that he was escorted from the premises by security. after the meeting, donald trump understood what his family members and what people close to him were saying when it came to corey, he understood the problems that he faced and he realized and agreed that it was time to let corey go. paul manafort is now the campaign manager. he has been in charge of strategy for months now nominally, but corey behind the scenes i'm told from multiple sources was trying to undercut his power, undercut his influence and maintain his own

position within the campaign. corey has been with donald trump now since the very beginning, before the beginning when no other campaign manager would necessarily sign on to this campaign. this motto, corey's motto was let trump be trump and all of the sources credit him with being able to get to this point, with bringing donald trump to the point where he is the presumptive nominee, vanquishing 16 other candidates. and let trump be trump they acknowledge has worked until now, but they do understand that this is a general election. the electorate is changing and they want to make sure that their candidate, donald trump, will be changing along with it. they saw corey as a roadblock to that and that is why, peter, he is now no longer on the campaign. >> at least one source telling us that lewandowski was escorted from trump tower this morning by security. actually as this news initially broke, i called corey, spoke to him on the phone for a matter of moments before i asked him if he could confirm that he had been

fired and give any details and then he clicked, the phone hung up. katy, the real question now is whether any person behind the scenes for all this conversation about staffing, whether any person behind the scenes can really change the donald trump who has had so many of these self-inflicted wounds over the course of this campaign. >> reporter: you know, and that is the big question and certainly that's the big concern among not just those in the party and those in republican leadership but also within the campaign. donald trump is his own boss. he decides what he thinks is best. and the reality is, much of what the republican leadership and people in the party have been worried about and been concerned about and felt uneasy over is not necessarily how the campaign was being run behind the scenes, although that was a big concern. the biggest concern is the candidate himself. his tendencies to fire from the hip, to say controversial things, to not come to stumps or interviews prepared, to not be fully briefed on policy. a lot of that, i'm told, is just donald trump, the way that he

behaves, the way that he operates. he's given a lot of newspaper articles and magazine articles and clippings on a daily basis. most of them i'm told are the ones that are about him. one source saying that he only reads something if it has his name in it, so there's obviously an effort behind the scenes to change that. folks in the party say that they welcome this news because they say paul manafort gets it and they think and they hope that he'll be able to help manage what donald trump says and help manage him better on strategy. but still, there is a concern and you named it, donald trump is his own boss. he says what he wants to say. will this corey lewandowski firing change anything? it's not entirely clear as of now, but they do realize that they have lost valuable time in the run-up to the convention and it has hurt them and they want to make sure going forward it will be a smoother process. the main theme that i'm getting

from multiple people i spoke with in this morning is they do not want the campaign to be painted by the broad brush of corey lewandowski. ultimately, though, and we've seen this on the campaign trail for 11 months and certainly seen it in the last two weeks where he's had a pretty devastating time, donald trump is his own man. he says what he wants to say and that is often the most dangerous thing about him. >> yeah, katy tur, thank you very much. i want to get to our colleague, nbc's kelly o'donnell. kelly, you were on the air immediately after this happened with a lot of unique reporting about what happened behind the scenes there, so i want to tee you up to give us some of the details as you understand them but also with your breadth of knowledge in the way that campaigns work and washington works. no matter who the man is, no matter who the campaign manager is, at the end of the day it's the candidate who's driving the train. >> reporter: absolutely, peter. and i'm told from sources today that donald trump is recognizing that his campaign is, quote, off the rails and that he needed to do something, quote, pretty dramatic to try to fix things.

and that he wanted to send a signal to the republican party more broadly and to many of his detractors and critics that he understands that this isn't going well and that he needed to do something and that something took the form of firing corey lewandowski today. and sometimes pushing a campaign manager out of the way, and it's not a rare occurrence, these campaigns are in effect a pop-up of a corporation worth a billion dollars. not an easy thing to do. now, for hillary clinton, who has had a long plan and has had a large staff, very different sort of structure. but out of the tumultuous 17-person gop primary field, they have not had the kind of time to assemble a team and there has been this resistance. katy was talking about it. i've been hearing that for months, that corey lewandowski put himself between donald trump and new people coming in who have more professional political experience at this level. while he had been an operative in the conservative circles and active in his home state of new

hampshire, he's never been part of a presidential campaign before. paul manafort, that other top figure, has and even that, i'm told that corey lewandowski was offended by the rise of paul manafort inside the trump organization. one thing that is really critical to understand about this is the influence of donald trump's own family. i have been told many times that they are really chief advisers. he trusts them like no other. they have a keen sense of what the perceptions about their father and family member are. and they have not been happy with corey lewandowski for some time. certainly i was hearing a lot of that at the time when he was in some legal trouble over his scuffle with reporter michelle fields, you remember that episode. trump stood by him at that time, no charges were filed. but the trump family has had concerns about this. more broadly i'm told that the gop had been telling trump that corey lewandowski, quote, had no finesse and wasn't understanding his place in something that is

now bigger than trump. it represents the future of the republican party and many who have earned their way into top positions had been frustrated that lewandowski, according to them, was not able to sort of grow in his role and trump was getting that signal. i'm told that he wants to win and this is one way he's trying to show that he gets it. peter. >> kelly o'donnell with a lot of unique reporting today from all of her sources behind the scenes. kelly, thank you very much for that. we're going to be right back. we're focused on more news expected to be made today on capitol hill. four votes on gun control legislation. we're back after a short break.

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this afternoon, the senate will vote on four new gun control bills. the vote coming after that nearly 15 hours filibuster by the senate democratic last week following the attack in orlando. the other two on amendments of keeping guns out of the hands of

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southern california, steve patterson is in the hard hit area in that state. give us a sense of the situation there, the real fears with temperatures rising and wind gusts as well as the situation is not going to subside any time soon. >> the situation is hot. >> reporter: we are in the staging area of this surf of fires. still in the morning hours of this side of the country, you can see the huge shift change. one of the biggest most important parts of the point is this truck here. we heard the forecast of what's going to happen this weekend and beyond to the week, we had about 800 additional more firefighters added to battle this race. we had three firefighters had to be air lifted because of heat

related injuries fighting this fire. the winds here have been favorable. we have been watching those winds coming each and every night. they're hitting areas where the fire kind of charred and burned out. it is pushing the fire back away from population center and not towards it. this heat wave is soaking a bunch of fire. there is a brand new fire on the u.s. mexico border about 1500 acres. that one started and burned three structures and injured firefighters. there is the cedar fire in arizona, 12,000 acres. >> and new mexico of 17,000 acres only about 10% contained and it is taking about 24 homes. as you mentioned, the heat not only affecting these fires but people in populations, we had major alerts in arizona, new mexico and california. those four heat related deaths

as you mentioned in california, we are learning of the victims of how young they were in their mid-20s. obviously, they're healthy. a lot of time you hear about the elderly or young, it is really everybody that's affected in this dangerous heat. here in the fire, this fire is half way contained about 54%, it is only about 8,000 acres. they managed at a good containment line of this fire. they have to keep on doing it by staying safe and hydrated. peter. >> steve, fair to say this is basically the start of the summer fire season in california, it is always becoming a year round right for these fire crews as they bounce from one location to another, clearly it is going to be another taxing. as you look at the temperatures ahead, that's as compelling a story as it is today of the fire themselves. a lot of fatalities and you

notice nothing had -- nothing near this. >> reporter: nothing near this. that's a great point. i have asked my colleagues, when does fire season actually start? and they said steve, look, it never really ends. you are dealing with humidity that plummets and state like california that's in a five year drought and a lot of young people hikers and bikers, thinking they're pushing that extra mile when they're not properly hydrated so safety is a big concern especially with heat like this. >> steve, thank you very much, thanks you at home for watching this hour of msnbc live. peter alexander is in today for tamron hall right now on msnbc, "andrea mitchell reports." >> right now on "andrea mitchell reports," inside the orlando club massacre. the fbi released partial transcripts of the conversations

they had with the gunman during a shooting rampage. >> what i can tell you that why the killer made these murder statements, he did so in a chilling, calm, and deliberate manner. yes, the audio is compelling. to expose it now is excruciating painful to exploit it this way. trump's original campaign manager is fired. >> a lot has happened since the primary took place back in january, and february. the circumstances changed drastically. donald trump is going to go down to a resounding defeat and take the republican with him. >> biden's blast today taking down trump and tomorrow, hillary clinton. over the weekend, a preview of chief