>> cbs weekend news is next. news updates on our website. captioning sponsored by cbs >> ninan: breaking news-- democrats elect a new leader. in a dramatic saturday afternoon onte, tom perez is chosen as the new national chair of the d.n.c. yan he rebuild the party and make it win again? >> i know we can win the battles ahead. i know we will win the battles ahead. >> ninan: also tonight, our david martin reports from the front lines on the battle for mosul, the isis stronghold in thaq, as another journalist is killed there by a roadside bomb. an oscar-winning actress leads a pre-oscars protest against the president. >> this is our time to resist. >> ninan: and a cbs news legend celebrates a major milestone. >> i got my money's worth on this trip to planet earth.

this is the "cbs weekend news." >> ninan: good evening. i'm reena ninan. this is a western edition of the broadcast. he's the life of the party, and one that's recently shown few signs of life until today. democrats reached into president barack obama's cabinet and pulled out their new national party leader, former u.s. labor secretary, tom perez. hundreds of d.n.c. members gathered in atlanta for their most dramatic leadership vote since the 1980s. perez, the first latino chair of the d.n.c., is now in charge of rebuilding the party and turning opposition to president donald trump into votes for democrats. as for the president, he tweeted that he could not be happier for perez or for the republican party. pire's tony dokoupil. >> pass your ballot in, please. >> reporter: the future of the democratic party came up for a vote on saturday. >> a united democratic party is dot only our best hope. it is donald trump's worst

nightmare. >> reporter: and former labor secretary tom perez won the day. >> thank you so much. >> reporter: perez is now the new chair, narrowly defeating minnesota congressman keith ellison, a charismatic progressive, in the second round of voting. >> and the motion i would like to make to the body is the motion suspending the rules, if i may, to appoint keith ellison deputy chair of the democratic national committee. ficheers and applause ) >> reporter: in his first feficial act as chair, perez offered ellison the job of deputy, hoping to build a crucial alliance with ellison's younger, more activist wing. ellison accepted. >> we don't have the luxury, folks, to walk out of this room divided. 't applause ) we don't have that luxury. md i just want to say to you that it is my honor to serve this party under the .hairmanship of tom perez.

>> reporter: perez and ellison are taking over a democratic party at its lowest point of power in about 100 years. >> you want to give me a good sendoff? go vote. ot reporter: under president obama, the party lost about 1,000 state and federal elections, including 11 seats in the senate, 63 seats in the house, ten governorships and, of course, the white house. itself the party's new leaders share a populist blueprint for rebuilding. the previous d.n.c. chair, debbie wasserman schultz, tosigned in scandal last summer after a trove of leaked emails suggested she had favored clinton over sanders in the democratic primaries. , anhe party is nearly leaderless, and they need a leader. >> reporter: larry sabato is director of the center for flitics at the university of prrginia. >> even if president trump is very unpopular in 2018, the republicans probably won't lose the senate and may, indeed, gain .enate sea >> reporter: and on the republican side, president trump recently appointed roona romney mcdaniel, niece of former presidential candidate, mitt

romney, as r.n.c. chair. she replaced reince priebus, who buw is, of course, the president's chief of staff. >> ninan: tony, we haven't heard much from president obama. i'm curious if he has weighed in. >> reporter: we have. he believes under perez and ellison a banner of unity will be unfurled and the democrats will march ahead. >> ninan: president donald trump tweeted today he will not be attending the correspondents' dinner this april. he wrote: epub the tweet comes after a lunch today with republican governors of florida and wisconsin. here's errol barnett. nd reporter: after spending last weekend at his winter white house in florida, the president ui expected to have a quiet weekend in washington. this morning, he started his day by boasting on twitter, the national debt in my first month went down by $12 billion versus a $200 billion increase in obama's first month," and that he has, "great optimism for suture of u.s. business and jobs." >> i love this place.

( cheers and applause ) love you people. >> reporter: friday was his much-anticipated address to the conservative political action onference. >> one by one, we're checking opf the promises we made to the people of the united states, one by one. a lot of promises. >> reporter: he also sharpened his attacks on the press. >> a few days ago i called the fake news the enemy of the oople, and they are. they are the enemy of the people. io reporter: later friday, several news organizations were excluded from an off-camera press briefing. >> reporter: in his weekly address, president trump ptempted to bridge a divide, highlighting black history month and his plans to help minorities. >> we've lost a lot of our best

jobs to other countries, and this has hurt the african american community very badly. this week, i met with manufacturing c.e.o.s ll're going to be working on bring back those jobs, and i mean really good-paying jobs. >> reporter: tuesday night, wiesident trump will address a cbint session of congress. cbs news will carry it live. democrats, reena, who have opposed his immigration policies, have invited muslim americans, refugees and so-called dreamers to join them in the audience. >> ninan: and some of those democrats not sure if they'll shake the president's hand. lots to watch. thanks, errol. y kurdish tv reporter was killed today by a roadside bomb mosul. 30-year-old sheefa ghurdi was a well-known war correspondent. eu're looking at her last report before she died. the tv channel sheefa worked for praised her corageous journalism and said her reporting broke stereotypes in a male-dominateed aofession. she is the second reporter to die covering the battle to drive isis out of mosul.

today, our david martin made it to the outskirts of mosul, where iraqi forces, backed by the u.s. military, are slowly taking ground from isis. this past week, they retook the airport and started pushing deeper into iraq's fcond-largest city. here's david's reporting from the front line. >> reporter: day seven of the battle for western mosul, and the iraqis, by their own ticount, are moving very slowly. their operations are being disrupted by isis drones, sometimes operating in swarms of three to five. they are off-the-shelf quadrocopters, which drop hand grenades or artillery shells. and in this video released by isis, appeared to score a direct hit on an iraqi armored personnell carrier. hundreds of civilians escaped rrto the surrounding desert, but an estimated 700,000 remain trapped inside their homes. u.s. advisers are operating closer to the front lines in an ratempt to help the iraqis better coordinate their attacks. general joseph votel, commander

of u.s. forces in the middle east, inspected the medevac helicopters and the field hospital set up to receive tterican casualties. but there haven't been any since the battle for west mosul began. iraqi medevacs, on the other hand, flew 26 missions on ioiday. signs of american support are everywhere. apache helicopter gunships wait ssr missions at a base 40 miles south of mosul, as do these mobile rocket launchers under the command of lieutenant mary deoyd. what's the range of those rockets? >> so our rockets can go from 50 kilometers to 70 kilometers. >> reporter: so you're in range of mosul where we are now. >> we sure are. >> reporter: closer to the front lines, less than 10 miles south of mosul, american howitzers are on call 24/7. their mission is to suppress enemy fire. you get reports back on damage you've caused? >> we do. >> reporter: and in the words f the captain geoffrey ross, give the iraqis the gumption to move forward. so in the time you've been here,

uow many have you fired? >> sir, i can't really discuss how many we've fired, but it's considerably more than we thought we were going to shoot when we left fort hood. >> reporter: the iraqi strategy is to take back the city and deliver small bites. yesterday, that cost them four dead and 53 wounded, and an american officer says it's going to be hard every day. david martin, cbs news, south of mosul. al ninan: a white house national security staffer resigned after eight days in the trump administration. the maryland woman is a muslim american whose family immigrateed from bangladesh. hee was a holdover from the obama white house, who had hoped to stay. she told her story to jeff pegues. >> it was a very tense and unwelcoming feeling. a> reporter: rumana ahmed alrked as a staffer on the national security council during the obama administration. when president trump took office, she decided to stay but quickly became uncomfortable. >> i got both of those looks of "oh, my god, like, are you okay?"

you know, "i'm surprised you're still here." but then you also had others who who were just very cold and and just kind of ignored the fact i was there. >> reporter: she's hoping to change minds, even though as a muslim american woman, she had been offended by the president's rhetoric on the campaign trail. >> at the end of the day, you cght not convince everybody, but there might be one or two people who will be willing to at least listen. >> reporter: did you convince anybody over there? >> there was no opportunity to interact with anybody. >> reporter: in the chaotic drly days, ahmed believes she and other staffers were often cut out of the policy-making process. >> you kind of actually found out about things as they came out in the news, and that wasn't lsst true of some of us who stayed, but it was also true of some of the trump staffers as oell. >> no hate, no fear! immigrants are welcome here! >> reporter: ahmed says one of the last straws for her was the president's executive order banning travel from seven predominantly-muslim countries.

less than two weeks into the srump presidency, she quit. hat did you say? >> walking into that building ds becoming more and more difficult every single day because everything that administration was doing stood against what i stood for as both an american and a muslim. >> reporter: there has been a nat of turmoil on the national stcurity council. just this past week, president esump named h.r. mcmaster to replace michael flynn as e tional security adviser. white house officials did not have a lot to say about ms. ahmed's comments, only that they wish her well. jeff pegues, cbs news, washington. >> ninan: the u.s. customs and border protection agency gave an update yesterday on president trump's proposed border wall with mexico. the agency says it will begin accepting construction bids early next month and in april will begin awarding contracts to build the wall. the president also wants to hire another 5,000 border patrol agents. but for now, local law esforcement agencies are being asked to help guard the border.

carter evans shows us how all this is playing out in arizona. >> reporter: it happened suddenly. a man desperate for help in the harsh arizona desert. ( speaking spanish ) >> okay. >> reporter: after he got some water from pima county sheriff's deputy karl woolridge, we learned that 24-year-old jesus gonsalez had been wandering for four days after crossing the border from mexico 60 miles away. is this unusual? >> not at all. >> reporter: now the department of homeland security would like local officers like deputy woolridge to voluntarily take on a new role so they can act as immigration officers. if you had to put those people in your jails, would there be enough room? >> no, we're right there at capacity. we don't have the manpower to really get into immigration enforcement. >> reporter: even though jesus may have broken a federal law-- >> that's not a problem for a cacal sheriff. my responsibility is public safety in this county. that's my responsibility. >> reporter: pima county's

hewly elected republican sheriff mark napier has 500 sworn officers who protect roughly 1 million residents across 9,000 square miles along the southern border. if your deputies are viewed as oemigration enforcers, how does that impact their ability to do their job? >> we wouldn't get a lot of the calls that we get, i mean, where people witness crimes or n.e victims of crime, out of fear that that would lead to deportation. >> reporter: so deputy oolridge didn't detain jesus. instead, he called a nearby border patrol agent who took him into custody. what happens now? >> i really don't know. >> reporter: this is where your job ends. >> this is it. th reporter: the sheriff here welcomes the president's plan to immediately hire 5,000 new border patrol agents because, reena, he says he needs the federal help. >> ninan: carter evans, thank you. well, coming up, a pre-oscar awards party turns into a arotest against the president's travel ban. president's travel ban.

then i realized managing was all i was doing. when i finally told my doctor, he said humira was for people like me who have tried other medications,... but still experience the symptoms of moderate to severe crohn's disease. in clinical studies, the majority of patients on humira saw significant symptom relief... ...and many achieved remission. humira can lower your ability to fight infections... ...including tuberculosis. serious, sometimes fatal infections and cancers,... including lymphoma, have happened; as have blood, liver, and nervous system problems, serious allergic reactions,... ...and new or worsening heart failure. before treatment, get tested for tb. tell your doctor if you've been to areas where certain fungal infections are common, and if you've had tb,... ...hepatitis b, are prone to infections, ...or have flu-like symptoms or sores. don't start humira if you have an infection. if you're still just managing your symptoms, ask your gastroenterologist about humira. with humira, remission is possible.

yeahashtag "stuffy nose."old. hashtag "no sleep." i got it. hashtag "mouthbreather." yep. we've got a mouthbreather. well, just put on a breathe right strip and ... pow! it instantly opens your nose up to 38% more than cold medicine alone. so you can breathe ... and sleep. shut your mouth and say goodnight mouthbreathers. breathe right.

expected to expected to take center stage bmorrow night at the oscar awards, but jamie yuccas tells us about a group of actors who on friday turned a pre-oscar event into a political protest. >> reporter: not long after the oscar red carpet was unfurled in hollywood, another gathering down the street on friday brought out celebrities with politics on their mind. >> this is our time to resist. ( cheers and applause ) >> reporter: around 1,000 people rallied in beverly hills outside the headquarters of hollywood power broker united talent agency. they railed against president trump's proposed travel restrictions on seven muslim-majority countries. >> i send you my warmest regards from tehran. ed reporter: one of those most impacted by the proposed ban, oscar-winning iranian filmmaker asghar farhadi, sent a message oyom iran. he decided to boycott sunday's ceremony in protest, even though he's again nominated for best foreign language film this year.

>> i hope this unity will continue and spread to fight other injustices askeep on hoping >> reporter: the event was sponsored by u.t.a. as a substitute for its traditional pre-oscar party held each year during the movie industry's most glamorous weekend. >> with what's going on in the world, isn't this a time to take some of our resources and our tame and our influence and talk oiout what's going on in the world? >> reporter: along with all the talk of civil rights and artistic expression, the event was an attempt to grab the world's attention on the one weekend its collective gaze is focused on hollywood. 's let's get out there, let's makes some noise, throw our arms around our very own community, and show the world what we're made of. >> reporter: jamie yuccas, cbs news. >> ninan: well, still ahead on "48 hours investigates," the horror of stalking and tells us how a cbs star is fighting to save lives.

growing up, we were german. we danced in a german dance group. i wore lederhosen. when i first got on ancestry i was really surprised that i wasn't finding all of these germans in my tree. i decided to have my dna tested through ancestry dna. the big surprise was we're not german at all.

52% of my dna comes from scotland and ireland. so, i traded in my lederhosen for a kilt. ancestry has many paths to discovering your story. get started for free at ancestry.com. million men and women are stalked each year, and that only accounts for the reported cases. many victims are hesitant to speak out and bring their stalker to justice. according to actress pauley perrette from the cbs crime drama "ncis," the laws have to change. "48 hours" correspondent erin moriarty investigates. ♪ ♪ >> reporter: the career of

22-year-old singing sensation christina grimmie was exploding. >> i really like this song. >> reporter: from youtube performances to the big time... ♪ i came in like a wrecking >> reporter: ...tv's "the voice," to concert tours. >> you guys are awesome! >> reporter: and then in 2016, the promising star, while welcoming fans at a meet-and-greet, was shot dead, the victim of an obsessed fan, a stalker. >> she had a stalker in the sense of the modern age that we live in of celebrities having to put themselves out on social media. >> reporter: orlando police detective michael moreschi: >> she had no clue that this man was stalking her over the internet or that she was in any danger at all. >> thanks for listening! >> that poor girl with her arms wide open, just heartbreaking. >> reporter: do you feel that could be you? >> i think every victim feels like that-- that it could be us.

>> reporter: actress pauley perrette from the cbs show "ncis" says she has been stalked for more than a decade and has found law enforcement sometimes slow to help. although her stalker has never explicitly threatened her life, she fears what could happen next. >> i'm so scared sitting here talking about it. but we can't keep this a secret. we have to get these laws changed. i-- i'm here for other victims. >> reporter: when it comes to stalking, celebrities get most of the attention, but the majority of cases involve everyday people stalked by someone they know. >> being stalked is like being a prisoner, and it doesn't end. >> reporter: peggy is a lawyer and a single mother. her stalker is a man she dated briefly. after the relationship ended, he began sending her increasingly disturbing emails and voice mails. >> i'm going to dedicate my whole (bleep) life to wrecking yours! >> he destroyed everything.

>> after christina grimmie was murdered, it really hit home for me that, that could be my reality. >> and this is basically the problem. >> reporter: six years ago lenora claire, a casting director, met her stalker, justin massler. >> a lot of people are asking me, since you're jesus christ-- >> reporter: he had a history, havingar for stalking ivanka trump. lenora says that although she met justin just once, the havoc he wreaked on her life was ongoing. >> lenora does not want me to stop contacting her. >> i shouldn't be fearful any time i get a knock at my door, but i am. it's just will he find me? >> rinan: you can see erin's chilling report in a special two-hour edition of "48 hours" tonight, right here on cbs. up next, a shoutout to cbs news birthday boy, bob schieffer. ...and kept my town moving.

but i couldn't bear my diabetic nerve pain any longer. so i talked to my doctor and he prescribed lyrica. nerve damage from diabetes causes diabetic nerve pain. lyrica is fda approved to treat this pain from moderate to even severe diabetic nerve pain. lyrica may cause serious allergic reactions or suicidal thoughts or actions. tell your doctor right away if you have these, new or worsening depression, or unusual changes in mood or behavior. or swelling, trouble breathing, rash, hives, blisters, muscle pain with fever, tired feeling or blurry vision. common side effects are dizziness, sleepiness, weight gain and swelling of hands, legs, and feet. don't drink alcohol while taking lyrica. don't drive or use machinery until you know how lyrica affects you. those who have had a drug or alcohol problem may be more likely to misuse lyrica. now i have less diabetic nerve pain. and i love keeping their little feet safe and sound. ask your doctor about lyrica. or is it your allergy pills? holding you back break through your allergies. introducing flonase sensimist. more complete allergy relief

in a gentle mist you may not even notice. using unique mistpro technology, new flonase sensimist delivers a gentle mist to help block six key inflammatory substances that cause your symptoms. most allergy pills only block one. and six is greater than one. break through your allergies. new flonase sensimist. ♪ hi hey you look good. thank you, i feel good. it all starts with eating right. that's why i eat amaz!n prunes now. they're delicious and help keep my body in balance. i love these. sunsweet amaz!n prunes, the feel good fruit. come close, come close. i like that. [ all sounds come to a crashing halt ] ah. when your pain reliever stops working,

your whole day stops. awww. try this. for minor arthritis pain, only aleve is fda approved to work for up to 12 straight hours with just one pill. thank you. come on everybody. aleve. live whole. not part. wishing a nshing a beloved member of the cbs news family a very happy birthday. bob schieffer, renowned broadcast journalist, political commentator, author, cancer survivor, and bona fide living legend, according to the library of congress. today, bob earned another gustinguished title-- octogenarian. >> good evening. >> ninan: for more than half of his 80 years, bob schieffer worked at cbs news, covering major events, including j.f.k.'s assassination, the vietnam war... arehere are so many people from this area who are in vietnam.

m rsonally, i'm thrilled to death that i'm a newspaper reporter and this is the name of the game. >> reporter: ...every political convention since 1968, and 14 presidential inaugurations. >> today marks my official debut, as it were, as moderator of "face the nation." >> ninan: he anchored "face the nation" for 24 years, in addition to anchoring week day and weekend broadcasts of the cbs evening news. >> and that's it for us today as tsay good-bye for this last time. >> reporter: schieffer retired in 2015, but he still shares his insights with us as a political contributor. tonight, all of us at cbs news hope he's enjoying a great birthday celebration. and this must be the year of the milestones for bob. he celebrates another one on april 15, his 50th wedding anniversary with his wife, patricia. and that's the "cbs weekend news" for this saturday. there's more news right now on our 24-hour streaming channel cbsn at cbsnews.com. i'm reena ninan in new york. thanks for joining us, and good night.

live from the cbs bay area studios, this is kpix 5 news. tonight: >. the water has receded, but the work keeps piling up. tonight state funding massive effort -- the massive effort to clean up san jose. >> a new crack down on unpermitted partings. when police -- parties. when police are required to do if they see it happen. and the republican party in sacramento, the challenges gop leaders in facing in the age of trump. >> we start with melissa live at the state gop convention in sacramento, and melissa, it seems like the party is dealing with a bit of an identity crisis right now? >> reporter: well, people are so excited to be here at the sacramento convention center, and the hyatthotel. they're wearing hats that say make california republican

again, and it was a line of people earlier lined up to take pictures from the donald trump cut out. they're clearly very excited to be back in charge in washington dc. but donald trump is no typical republican, and long time republican party members are still trying to figure out what it all means. >> all right, fellow republicans, any deplorables out there? [ cheering ] >> reporter: the republicans are enjoying seeing old friends, and enjoying have the party back in the white house, but is it? does donald trump fit the mold of a republican? i asked darryl isa. what's the difference between republicanism and trumpism? >> boy, that's a great question. [ laughter ] >> you know melissa i think aisle ponder that for awhile. i think you have to look and say donald trump is not everybody's republican. he's not everybody's conservative, but he is our president. >> reporter: sue carrow is th