this hour. that's going to do it for me here. thank you so much for watching. see you right back here tomorrow. my colleague steve kornacki picks things up from here. all right. continuing msnbc coverage this hour, i'm steve kornacki. 139 days to go until the election. topping the agenda right now, no bill, no break. democrats as we speak staging an unprecedented sit-in on the floor of the house of representatives. they say they will not budge unless congress gets to work on gun control. with the house officially in recess right now, cameras in the chamber are turned off but the democrats are using periscope and other live streaming apps to show the world what they are up to. >> if you are suspected and known to be a terrorist, why, why can you get a gun, a machine gun, at the corner gun show? we will not leave the floor of this house until this congress takes action.

>> the sit-in now in its fourth hour. how will the republicans who run the house respond to all this? we will go live to the capitol with luke russert in just a moment. also on our agenda, the counter attack. a day after hillary clinton tore into him with a major speech, donald trump firing back with one of his own, calling his opponent a liar and a disgrace. >> she believes she's entitled to the office. her campaign slogan is "i'm with her." you know what my response is to that? i'm with you, the american people. >> it was a little bit of a different speech today from trump than we're used to. there was white-hot rhetoric like always but this one was heavily scripted and calculated. we will break down what he said and show you why he was saying it. that's straight ahead. rounding out our agenda, hillary clinton with another dig at trump after he seemed to

question her religion. this as she delivers day two of her economic agenda. >> as we methodists like to say, do all the good you can to all the people you can in all the ways you can. >> we will be talking to a top clinton supporter later this hour but we begin with the sit-in. the leader for the house democrats, nancy pelosi, she has now joined her colleagues. they are literally on the floor of the house for this unprecedented sit-in, demanding a vote on gun control legislation. earlier this afternoon, congresswoman pelosi addressing the media on capitol hill. >> our members are gathered on the floor of the house in protest that we cannot even have a vote, because we truly believe that if there were a vote, that we would win the vote. >> john louis, congressman from georgia, also a veteran of the civil rights movement from the

1960s, he's leading charge for the democrats today on this sit-in. c-span, the cable channel that does gavel-to-gavel coverage of the house when it's in session, it is not actually -- its cameras not actually on today because the house not technically in session, but as we mentioned, members of congress are capturing live video on periscope and other social media outlets and now c-span, the cable channel, is actually broadcasting those periscope streams. john larson, congressman from connecticut, tweeting earlier they can turn off the cameras but they can't keep us quiet. #no more silence. we want a vote on gun reform. luke russert is live on capitol hill with the latest. luke, we see what democrats are up to. they are sitting in, saying they're staying until the house actually takes action on this. what are we hearing in terms of the response from republicans who actually run the house? how are they going to handle this? >> reporter: so far, their

response has been they are going to wait out the democrats. they believe that the democrats are in violation of the house rules and that they don't want to bend to pressure being put upon them by democrats because they don't want to set a precedent for if you're unhappy with how the votes are dictated, that you can just go sit in the chamber and get whatever you want. remember, the way it works in the house is that the party in power is in charge of the floor and they literally can make up the rules for what gets to the floor. there are no filibusters in the house. that's a senate tool. in the house, the house majority leader dictates what comes to the floor, what time it comes to the floor and how it's voted on. democrats doing a historic protest by sitting here in the well, not having any cameras broadcasting out through pirated means, through periscope and on twitter, and literally, everything is then rehashed from journalists who are inside the gallery who are tweeting and typing it up. there are no stenographers in there, there is no official

record. it is a historic moment without a doubt. they want to see action on two bills. the no fly, no buy the senate recently voted on, as well as a background check bill that would close the gun show loophole with private sellers. the person leading this effort, civil rights icon john lewis. i asked why he took this extraordinary step. >> i never dreamed that one day after coming to congress, i would have to sit in on the floor of the house, sit down and occupy the well of the house. we have been waiting, waiting for a long time, for the leadership to bring a piece of legislation or maybe more than one piece to deal with gun violence. >> reporter: steve, it's unclear how this will end. maxine waters, representative from california, said hell would have to freeze over before she'll leave the house floor. it is now wednesday. they are scheduled to go to recess on friday. i spoke to some members that say they would be willing to spend the weekend here on capitol hill. this could be the beginning of

the beginning of what would be a long protest regarding gun violence. >> a developing situation there on capitol hill. that sit-in in hour number four. luke russert, we will check back in with you throughout the hour on the latest. thanks for that. turning now to the presidential race. donald trump, that major speech he delivered today attacking hillary clinton. campaign sources say this is their full frontal assault on their presumptive democratic opponent. the trump campaign trying to turn the page to the general election after weeks of negative headlines. trump being strategic today, maybe a little uncharacteristically strategic in how he framed his message. he was reading from a script. there were lines that were designed with a very clear purpose in mind. here's what we are going to do. we will take a look at some of the things donald trump said today. we will try to explain exactly why he said them, the way he said them. let's start on the topic of foreign policy. what donald trump had to say on foreign policy.

if you look at our most recent polling on this race on the topic of foreign policy, there is some bad news for donald trump. you can see it right here. we asked which candidate would better handle foreign policy. huge advantage there for hillary clinton. so that's the challenge for donald trump, how can he address that. well, the one good piece of news for him on foreign policy in our same poll was we asked voters who would did a better job standing up for america. it's sort of a question there about toughness, standing up for the country, maybe on the international stage. you see trump actually has an advantage there. he seems to have an advantage on perceived toughness, but overall, handling foreign policy, big disadvantage. how would he try to thread that needle? let's take a listen. >> the hillary clinton foreign policy has cost america thousands of lives and trillions and trillions of dollars, and unleashed isis across the world. no secretary of state has been more wrong more often and in more places than hillary

clinton. >> trying to paint her as weak and incompetent. how about the economy? another major issue. it was the topic of hillary clinton's speech yesterday. here's the bad news for trump. this is what he's up against when it comes to the economy. our poll asked who would do a better job looking out for the middle class. you see clear advantage for hillary clinton there. where does donald trump have an opening when it comes to the economy? well, one particular issue really stands out and that is trade. look at this. who would do a better job protecting america's interests in trade deals. donald trump with an advantage there. so here's donald trump, trying to take advantage of that in that speech today. >> hillary clinton supported bill clinton's disastrous and totally disastrous nafta just like she supported china's entrance into the world trade organization. we have lost nearly one-third of our manufacturing jobs since these two, hillary backed agreements, were signed among the worst we have ever done, among the most destructive

agreements we have ever signed. >> then there's this. then there's the bigger picture question about what kind of a president do you want. the question of leadership. here's the problem for donald trump, here's what he's up against. if you are basically asking who would be a good commander in chief, this is just basic day to day competence in the job, hillary clinton, you can see voters much more comfortable right now with the idea of her as commander in chief. where does donald trump have a potential opening here? it's this question. it's the question of change. changing business as usual in washington. voters actually, that should be flipped. it's 55% for trump, 22% for clinton. those should be flipped. that is the advantage for donald trump potentially, if he can get voters thinking about changing washington, then he might be able to take away that advantage clinton had. this is how he tried to do it today. >> hillary clinton's message is old and tired. her message is that things can't

change. my message is that things have to change. >> all right. let's bring in nbc's hallie jackson, she was at trump's speech today. a lot of people looking at as we said, this was a much more packaged speech than we are used to from donald trump and the question of the week has been, can donald trump mature as a candidate for the general election. what did you see today? >> reporter: frankly, i think that is still the question moving forward, can he mature. we are not going to know that until i think his next rally when he doesn't have those two teleprompters flanking him, when he doesn't have prepared remarks inserted into prompters that he can read off of, that his campaign carefully crafted, section by section, to go after hillary clinton. that is where we have talked about donald trump's quote unquote, pivot in the past and where the question mark has been, whether he can make that turn to try to allay some of the concerns from republicans who would like to see him stay more on message. it's the rallies where that breaks down. not sure we have an answer to

that question, at least not at this point. what did we see in the room? obviously it was a more -- i want to say subdued trump than normal. he ad libbed a little bit. he riffed off his notes but mostly stuck to the script, stuck to the prepared remarks that had been put into the prompters for him which for trump is something he's been doing over the last few weeks and privately, aides will say he is getting more comfortable with it. that is something they are happy to see. you talked about sort of the main areas in which he hit hillary clinton. clinton's team responding quickly, arguing it was factually incorrect repeatedly. we know some of the claims he said did not actually come out to be true. for example, you look at the allegation that hillary clinton's private servers had been hacked but independent investigations have found that in fact, it was simply routine phishing. you look at his claim that she was asleep during the benghazi attacks. she had testified under oath that she was awake, that she didn't sleep, e-mails reveal she had been corresponding with her daughter shortly before midnight

after the attacks had begun unfolding. regardless, trump is hoping to basically get back on offense today after frankly days of playing defense, his campaign's staff shakeup, you look at his sinking poll numbers, you look at his dismal fund-raising numbers. this is now for donald trump at least he hopes the turn to try to get back in the driver's seat, put the foot on the gas and move forward as he heads into scotland for that trip tomorrow. there was that notable line that he had right in the beginning, playing off of clinton's #i'm with her, you played it at the top of the show, i think, the idea that he said hey, i'm with you, the american people. well, he tweeted about that. i think we have it that we can pull up. #i'm with you, trump hoping to get that trending to try to counter some of clinton's attacks against him. we are not in the general election just yet but this feels an awful lot like it. it's all but arrived. >> you see in that tweet, pressing that issue of change. clearly they can see if they get voters thinking big change, might have a leg up there.

hallie jackson outside trump tower, thanks for that. as hallie was just discussing, a pivotal week for donald trump. there was the campaign shake-up at the start of the week. you have had open questions from his fellow republicans about the state and future of his candidacy. you have seen poll numbers moving in the wrong direction for him and republicans, members of his own party looking for signs that trump is maturing as a candidate and is up to the battle against hillary clinton in the fall. i want to bring in someone who has been skeptical of trump, a republican who has been skeptical of him. vin weber, former minnesota congressman, advisor to mitt romney, a friend of house speaker paul ryan as well. so put the question to you. did you see a different donald trump today, one who is capable of going out there and winning against hillary clinton? >> well, i'm still a skeptic but i think you got to give donald trump credit. the speech today was an effective speech and he delivered it well. i think there's a real question, a huge question now that has to be answered.

donald trump dominated the nominating process for a year. basically by saying outrageous things that guaranteed him free coverage so he didn't spend any money. we found out this week that he basically has no money. we have had campaign finance reports out and his campaign is essentially broke. he's likely to be outspent substantially in the rest of the campaign by hillary clinton unless he writes a large personal check. the question is, if he conducts the kind of campaign that this speech indicates, which most republicans think they want, a conventional, well-scripted speech, can he still dominate the media with free media as he did in the primaries, or can you only do it by saying the very outrageous things that have republicans so nervous? that's an unanswered question. give him credit. he gave a good speech today. >> so going forward, if he were to ask you for some advice here, looking at the situation he's in right now with the money as you outlined it, with the poll, what would be the biggest piece of strategic advice you would give trump right now? >> i do think on message that

his speech today started to hit on the most important thing, which is he has to be the change agent. we know that the biggest disadvantage that the democrats have is the country does not want really a third obama term, even though president obama's ratings are coming up a little bit. the country has not elected very often the same party three terms in a row, and the message of change that he started hitting on there is the main message. i don't think he has to win the argument about the economy or foreign policy. he has to win the argument that he's a change agent in washington. >> what about his relationship, we mentioned paul ryan as well, marco rubio today making news saying he's going to run for re-election again to the senate in florida. rubio basically making the argument in that announcement that he would be a check on donald trump, not that he would be a teammate, that he would be a check on him. in terms of getting big name republicans on board saying we need to be behind this guy to be our nominee, is there any prospect of that realistically

for trump? >> very difficult. as we have been saying here, give him credit for one good speech. but he still has a 70% disapproval rating. he's a huge drag on republicans around the country and a lot of them are afraid that he's going to ask the party to basically pick up the slack on his campaign at their expense. maybe he can change all that, but most republicans around the country are trying to figure out the best way to separate themselves from donald trump, not to help him. >> amazing situation we find ourselves here. >> almost without precedent, steve. >> vin weber, thanks for the time. >> thank you. after the break, marco rubio eyeing another campaign, this one for a seat he said he was done with. now he's changed his mind. we will show you what he told kelly o'donnell next. plus a life or death rescue mission at the bottom of the earth. a wind chill of minus 115 degrees fahrenheit at the south pole. that is where teams airlifted

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comcast business. built for business. senator rubio, you told us so many times you would not seek another term. you told us so many times you almost got irritated when we pressed you on it. why change your mind and why now? >> well, first, i did change my mind. i never said i was perfect or had all the answers. look, the bottom line is i feel deeply that no matter who's elected president of the united states, we will need a senate that has people willing to check and balance that. that's true whether it's president of your own party or from the other side. >> a big about-face today from

marco rubio. that was him just moments ago with nbc's kelly o'donnell making it official, he is going to run for re-election to his senate seat in florida this year. of course, it was just last month that rubio was sending out tweets like this, swearing up and down that his time in the senate was over. he would be a private citizen when his current term ends in january. but rubio now says he's going to run but he will not be campaigning, he says, with donald trump because they have quote, significant disagreements on a lot of issues. another former presidential rival ted cruz says he is supporting rubio in his re-election bid. here's the interesting part of all of this. a recent quinnipiac poll of the senate race in florida shows rubio as a candidate would lead congressman patrick murphy. he's one of two democrats seeking the seat. the other democrat, alan grayson, running basically the same result in that poll. he's eight points behind marco rubio. that primary is going to be in august. rubio leads both right now of

his likely democratic opponents but the same poll shows florida voters backing hillary clinton over donald trump in the general election. turning now to an incredible and daring rescue happening now at the south pole for two sick workers there. a short time ago a plane carrying those workers arrived at a british station about 1500 miles north of the national science foundation station at the south pole. the national science foundation just posted this picture on its facebook page. it shows the aircraft shortly after it arrived at that station. the ordeal not yet over. sick workers must now be flown off the continent, probably to nearby relatively speaking nearby south america. that could happen later today or tomorrow. this is the middle of the winter at the south pole. the sun won't shine for months. the conditions are so treacherous that most planes will not fly there between the months of february and october. nbc news chief global correspondent bill neely has

been to the south pole and has been following the rescue mission. he joins us live with the latest. what can you tell us? >> reporter: yes, one tiny plane, one huge journey and at least one life that was really in the balance today. that propellor plane with skis attached underneath as you say has now landed at the british antarctic base. the two sick workers, one with a life-threatening illness, off the plane and resting. it touched down there after a nine-hour flight from the u.s. south pole base. it's in the middle of nowhere in the antarctic. that plane flew in total darkness across this frozen continent. this is the only plane in the world capable of doing that journey. it looks fragile but it's actually pretty robust. normally no plane as you said would do this journey between february and october, eight months of the year. so this was a risky journey. the crew in this plane flew 1500

miles in. they had to sleep about ten hours, then took off again very quickly. there was a weather window. you wouldn't exactly call this ideal flying weather. as you said earlier, the latest temperature as they took off was 115 degrees below zero with wind chill. in that bitter cold, aircraft fuel, aircraft parts can freeze so they had to heat the fuel that was already in the tanks. this was a life or death mission. the head of the u.s. antarctic base told me the sick worker had indeed a life-threatening illness. so this flight back was certainly not without risk and as you say, those workers will now be flown out probably to chile, maybe after that on to the united states. but for the most part, the real journey is over, certainly the most dangerous part. >> all right. bill neely reporting in london. quite a story from the south pole. weather conditions of course are what made that rescue so

dangerous. msnbc meteorologist joins us more with what the winter in the south pole is like. >> yes. steve, it makes fargo feel like a caribbean destination. it gets so cold down there, about 100 degrees below zero. something that many people in the united states can't even fathom. of course, with that you get a lot of problems. you get technical problems with the plane, mechanical issues, hydraulics, also problems with the fuel. you can see here's a picture of the plane landing on skis. even the most skilled pilots here cringing at this sight under the conditions. winds routinely gust at about 70 miles per hour in this area. so the flight was about 1500 miles, again, to put this in perspective, united states, cross-country flight usually takes six hours. this one took about nine hours. you're not flying at the altitude that you usually would be in a commercial flight. usually you fly about 33,000, 34,000 feet. these planes are flying at about 10,000 feet because the air is

so cold and so dense and again, the sun isn't anywhere to be found around here. it sets in a good part of the south pole in march and doesn't come back up until september. so it's complete darkness. although they did have a full moon to work with. so some moonlight going on here. actually, at the time of the landing, only 14 mile per hour wind gusts. it was that really narrow window they had to calculate but again, 80 degrees below zero is the current temperature right now. the coldest temperature ever experienced in the united states up in northern alaska was 79.8 below zero. we haven't even matched that in the united states. meanwhile, this is what's happening in the u.s. it's winter in the south pole, but meanwhile, baking in summer heat across the country. incredible job by those pilots under incredibly tough conditions. >> i tell you, i think i would take that south pole weather over the 102, 105 degrees in the southwest. >> a lot of people like it cold. if you like it cold, give it a try.

>> i like sweater weather. i think it's the darkness i couldn't handle. >> i think it's a little more than a sweater. >> maybe a couple sweaters. thanks for the report. appreciate that. as house democrats continue that sit-in, we are keeping an eye on washington, looking for some action they say on gun control. there is a new bipartisan push in the senate to address that terror loophole to try to keep people on terror watch lists from buying guns. how this new proposal is different from the ones that couldn't get anywhere this week. is there any chance of a breakthrough here? that's right after this. about businesses being hacked and intellectual property being stolen. that is cyber-crime. and it affects each and every one of us. microsoft created the digital crimes unit to fight cyber-crime. we use the microsoft cloud to visualize information so we can track down the criminals. when it comes to the cloud, trust and security are paramount. we're building what we learn back into the cloud

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welcome back. here are the headlines at the half hour. right now, hillary clinton wrapping up a rally in raleigh, north carolina, just minutes ago clinton accusing donald trump of going after her personally because he has no substance. donald trump's own speech this morning, he called clinton quote, a world class liar.

meanwhile, we learned today that elizabeth warren will be joining hillary clinton on the campaign trail next monday in cincinnati. it is being called the largest crackdown on fraud in u.s. history, agents arresting more than 300 people, including at least 30 doctors. the justice department says those charged are responsible for more than $900 million in false billings to medicare and medicaid. dennis hastert, the former house speaker, is now in prison. he reported to prison in minnesota just hours ago. he is starting his service of a 15-month term for illegally structuring bank withdrawals as part of a hush money scheme. hope may be fading in the search for a boat carrying a man and his three kids off the florida coast. the coast guard says it has found empty life jackets in a kayak believed to belong to that family. the four of them had not been heard from since sunday. that's when the man called his brother to say they were

battling six-foot waves. more than 5,000 firefighters continue to battle four large wildfires in southern california. those fires have already burned more than 20,000 acres. still happening right now, we have been keeping an eye on this all hour. that sit-in that house democrats are staging on the floor of the u.s. house demanding a vote on gun control legislation. house speaker paul ryan keeping the house in recess right now, saying the demonstration is holding up normal legislative business. this comes today as the senate mulls a bipartisan gun control compromise. republican senator susan collins from maine introducing the bill just yesterday. >> our goal is simple and straightforward. we want to make america safer. surely the terrorist attacks in san bernardino and in orlando that took so many lives are a

call for compromise, a plea for bipartisan action. >> and at the heart of this debate, this so-called terror loophole, is the terrorist watch list. we hear so much about it. let's take you through exactly what that means and exactly how it factors into this debate. at issue is this sprawling federal terror watch list. we don't know exactly how many people are on this at any given time. they are added, names are added, names are taken off. people now find out when they're added to the list, they don't necessarily know why they have been added and there's a lot of trofr controversy because of that. right now it's estimated there are over a million names on this federal terror watch list. actually, a very small portion of those names, though, about 25,000 of them, are american citizens. one of the debates here is should all of the people, at least all the american citizens on this list, be banned automatically from buying guns. there was a proposal to do that. it did not get through the

senate earlier this week. so this compromise we are talking about, let's take you through what it would do. it would basically rely on a much smaller list. maybe they say a more targeted list. it would include the no fly list. these are people who are banned from getting on an airplane. there are a total of about 81,000 people, about 1,000 of them even less than 1,000, in fact, are actually american citizens. you can see that's much smaller than that more comprehensive federal terror watch list. also, it would include what they call the selectee list. those are people who are subbed to enhanced screening, enhanced tsa screening when they go to the airports. again, about 28,000 people, maybe 1700 or so of them american. those 1700 americans here, about 1,000 there. this is a much smaller, much more targeted list, this bipartisan bill says if you are in one of these two groups, then you can't get a gun. if you want to appeal that decision, you could go to a court, try to get a court to rule in your favor. the objection to this, it's still out there, you hear it from john cornyn, a top

republican who has been critical of this effort, this bipartisan compromise, what he says is look, the right to bear arms, the right to own a gun is a second amendment constitutional right. the federal government should prove in court before they deny you that right that you should not have a right to a gun. he says it's not good enough that you be put on the list and then get to appeal it afterwards. he's making a due process objection. that is one of the main objections to this right now. but we showed you there, that is the compromise, the bipartisan compromise that some senators are trying to push through on this issue. democratic senator tammy baldwin from wisconsin supports that bipartisan legislation that would ban people on both those tsa lists from buying a gun. she joins us now from the capitol. thanks for taking a few minutes. we took people through the basics on this. let me ask you. we had a bunch of votes fail on the senate floor earlier this week. what are the prospects of this compromise faring any differently? >> washington can't just agree

to disagree time and time again. that would be a failure of leadership and a failure as far as the people of america expect us to take action, especially in the wake of the tragedies in orlando. so this bipartisan measure, while not as strong as the two measures that senator murphy and senator feinstein offered on monday this week, is still a step in the right direction. and it is action at a time when action is desperately needed. >> let me take you through some of the objections to this and see what you say to them. number one, people say well, if this is a response to orlando, the orlando gunman was not on the no fly list, was not on the selectee list, the two lists we just showed you, so even if you pass this change in law, it wouldn't have stopped him from getting guns. >> let me say something about that. i have to admit that my understanding is that there are still negotiations around this

amendment so i hope it still remains what i was last briefed on. but there is a provision in the amendment that even if you can't bar the purchase of the gun, would alert the fbi that a weapon of war has been purchased by somebody who they had been watching in the last several years and that to me is a step in the right direction also. there's somebody who caught the attention of law enforcement authorities because they were exhibiting perhaps suspicious behavior or contacting known terrorists, then you learn that they have purchased a gun, at least we could be aware of that and that law enforcement can take another look at that individual. >> what about, though, that question of actually stopping somebody on one of these lists from buying a gun? the objection, it's a due process objection. it's not just republicans who make this objection. you have sort of civil liberty types on the left who say look, the right to bear arms, it's a

constitutional right. somebody, an american citizen wants -- >> it absolutely is. >> -- to buy a gun, they can. you can't stop them from buying the gun unless you can prove in court -- >> first of all, i'm a strong supporter of the second amendment. i'm a gun owner myself. there is due process. so right now, you could have your name accidentally on one of the say felony conviction lists and you would have the opportunity when you are turned down for the sale to appeal that, just like you would if this amendment is added. it just strengthens existing law to include yet another list, the no fly list. >> senator, the objection there would be when you are convicted of a felony, you have had due process that's been presented in court. you have had a chance to defend yourself and if there was a ruling in court, people are saying when it comes to federal terror lists there is no due process in terms of being placed on the list. you didn't go through a court to do that.

>> well, if you were mistakenly put on a list, i will give you a good example. they release felony lists oftentimes to voting precincts and people are turned away to vote. there are people who are mistakenly on those lists and there has to be a way to appeal that, to make sure that we get these things down accurately, and so in this regard, too, if you get turned down in the standard search which is conducted by authorities when you purchase a hand gun or long gun, there are ways to say i shouldn't be on that list and let me take my case to the next step. >> all right. senator tammy baldwin, we will see if this compromise has legs. thanks for joining us. from capitol hill, we take you to cleveland. a celebratory day there.

there he is. king james, lebron james is talking to all those cavs fans as they celebrate that city's and that team's, the cleveland cavaliers, nba title. this is the first time since 1964 that the city of cleveland has had a championship to celebrate. so many heartbreaks, so many painful near misses in all that time, but now, they came back from 3-1 down, they beat the golden state warriors and they are now celebrating. that's lebron james talking to folks there in cleveland. big day for that city. coming up next here, bernie sanders says he is going to work with hillary clinton to defeat donald trump but will his supporters rally around clinton? our most important number of the day says may not be as automatic as you think. >> donald trump said quote, to all of those bernie sanders voters who have been left out in the cold by what he called a rigged system, we welcome you with open arms. >> well, i suspect he isn't going to get too many of those people.

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doesn't appear that i'm going to be the nominee so i'm not going to be determining the scope of the convention. >> will you endorse hillary clinton and is there an agreement that you need to endorse her before they give you a speaking slot? >> no. there's no agreement on that. >> bernie sanders on c-span admitting he's not going to be the democratic nominee for president. how about this, though. this is just in the last few minutes, we have been following that sit-in on the floor of the house of representatives. democrats sitting in there, saying they won't leave until the house takes action on gun control. some senators throughout the day have been heading over to join them and there is bernie sanders, in the last few minutes, senator bernie sanders making his way to the other side of the capitol where the house is and on to the house floor, joining those democratic house members in their sit-in. of course, sanders before being elected to the senate, was a member of the u.s. house.

bernie sanders, this has been the question for democrats, for hillary clinton supporters, for people who do not want donald trump to win this november. the question has been what will bernie sanders and maybe as importantly, more importantly, what will his supporters do in that clinton versus trump race. you hear bernie sanders there basically admitting he's not going to be the nominee, but the question has been will his supporters flip over and vote for hillary clinton. it takes us to our most important number of the day today and that number is the number 55. it's a bunch of question marks now but there it is. 55. why 55? let me take you to the big board and explain. we have got some surprising new polling numbers to share with you. first, let's put this in some perspective. these are the total number of votes that the democrats received in the primaries. you see the 55 there. that's not the 55 we are talking about. we will get to that in a minute. bernie sanders got over 13 million votes in the democratic primaries this year. those numbers, not totally final yet.

they are still counting ballots in california. could get a little higher but it's about 13 million. so how many of those 13 million are going to be on board with hillary clinton? that's where the number 55 comes in. check this out. new numbers today from bloomberg, from their polling, 55% of sanders supporters right now saying yeah, we'll go with hillary clinton in the fall. that's not a very high number. that's not the number the clinton campaign and democrats want to see. you see 22%, that's nearly a quarter, nearly a quarter of bernie sanders supporters right now at least saying donald trump would be their candidate this fall. trump has been trying to make some overture toss them. how about this. gary johnson, the libertarian candidate for president, he is also making a pitch for sanders voters, picking up about 18% of them in this poll right now. for hillary clinton, there is bad news in that because she wants that number to be higher. the good news is, maybe it could get higher. maybe bernie sanders gives a big speech at the convention this summer endorsing her, maybe he goes out there, campaigns with her aggressively this fall. maybe that number comes up. the other question, though, for

hillary clinton, check this out. where the race stands overall. this is the average of all polls right now. she's up by about six points right now. if that holds, maybe she doesn't need more sanders voters. maybe that takes a little bit of the leverage away from bernie sanders if she stays that far in front of donald trump but of course, that is a big if. it is very early in this campaign. our most important number of the day right now, 55% of sanders supporters say they are on board with hillary clinton. the rest not ready to be there, at least not yet. by the way, news from the sanders campaign, not only is he on the house floor right now joining that sit-in but tomorrow, his campaign says at 7:00, here in new york city, 7:00 tomorrow night, he will give a speech. his campaign is calling this the where we go from here speech. be very interesting to see what bernie sanders has to say tomorrow night, 7:00 p.m. here in new york. up next, no bill, no break. that sit-in on the house floor has reached hour five. coming up, we will speak with congressman steve israel who has been on the floor as part of that. stay with us.

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put gun control to a vote. luke russert is in the thick of things there on capitol hill. luke, we were showing some of that video coming out of there a minute ago. bernie sanders coming over from the senate side, joining them. other senators doing the same. what's the latest? >> reporter: yeah, all broadcast via periscope because cameras are still off in the chamber because this is not a sanctioned moment on the house floor. little bit how this came together. katherine clark of massachusetts reached out to john lewis over the weekend. she's a representative from that state. she said look, we got to do something. he agreed that. group grew larger. they had a meeting last night where they came up with this idea to do this sit-in. that was then blessed by the leadership and that's how we are now. it's really taken social media by storm as well as the capitol building. democrats view this as a very important issue. they also view this as a very important political winner for them. tammy duckworth running in a competitive seat in illinois for senate, she's a house member, she took part in this, a combat

wounded veteran from iraq. here's what she had to say about why she participated. >> look at all these names. these are all of the chicagoans who have been killed by gun violence. you know, their constituency that i represent just want a vote. they just want common sense gun legislation. things like universal background checks. you shouldn't be able to buy a gun on the internet without going through a background check. you shouldn't be able to just go to a gun show and buy a gun without background checks. people on the no fly list shouldn't be able to buy guns. the fact of the matter is all we are asking for is a vote. the speaker won't even let us do that. it's really shameful because every day, innocent americans are losing their lives to gun violence. >> reporter: republican leadership aides tell us that no vote is planned. actual a spokesperson for speaker ryan says this house cannot operate without members following the rules of the institution so house is recessed subject to call of the chair. the republicans are prepared to wait it out. the democrats aren't going to go

anywhere. who knows how this ends. >> luke russert, thanks for that. we will talk to one of those democrats who has been part of that sit-in. congressman steve israel joins us next. will your business be ready when growth presents itself? american express open cards can help you take on a new job, or fill a big order or expand your office and take on whatever comes next.

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zantac works in as little as 30 minutes. nexium can take 24 hours. try cool mint zantac. no pill relieves heartburn faster. continuing to keep an eye on that scene. really it's an unprecedented scene on capitol hill right now. the floor of the u.s. house of representatives has been over taken by democrats. they are staging a sit-in and say they are not going to move until and unless the house which is of course led by republicans, takes action on gun control. congressman steve israel from new york has been part of that

sit-in. it began five and a half hours ago, about 11:30 this morning. he joins me now from capitol hill. congressman, take us through what happened here. where did this come from? >> well, over the past weekend, leader pelosi and i had been talking about various options we had to force paul ryan to give us a vote on no fly, no buy bill. what happened today, i have to say, was spontaneous. our caucus is just sick and tired of moments of silence, and as luke reported earlier, congresswoman katherine clark and john lewis had a conversation last night. they mobilized and organized and i'm so grateful that they did. we are just not going to continue to stand by as republicans allow americans to be slaughtered and respond with simple moments of silence. the american people want action. we are going to keep this going until we get that action. >> luke was just describing it seems like we are headed towards a stand-off. republicans say you guys sitting there refusing to move are holding up the house from doing other business. >> no, actually it's just the

opposite. paul ryan could solve this with literally the next five minutes. all he has to do is give us a vote. he can vote against a no fly, no buy bill. that's fine. but just give us a vote. give us the right to vote. if given that right to vote, we will cast our votes and move on to other legislative business. by the way, what other legislative business is there? are there more post offices we need to name this week? are there more days that we need to name? the business of keeping the american people safe is our paramount obligation. for us to do nothing is abdication of our responsibility. >> has anyone been in touch with paul ryan? >> there have been conversations between the leadership, best i know is the republican leaders have said they tl are are going votes, the business of the house will resume but we don't know when. as soon as you give us a vote on no fly, no buy. >> the standoff is continuing

apace. congressman steve israel from new york, thanks for joining us. appreciate it. that will do it for this hour. i'm steve kornacki. "mtp daily" starts right now. good evening. welcome to a special edition of "mtp daily." we're out west. i'm coming to you live tonight from seattle, washington. the other washington, as they like to call it out here. we are going to begin with some breaking news in the east coast version of washington. the congressional debate over gun laws took an unexpected turn today when house democrats began a sit-in on the house floor. it is now in its sixth hour. here's how it first unfolded earlier today. >> the chair finds that the house is currently not in a state of order due to the presence of members in the well who art