Supremacy or White Supremacists. Reporter he demurred when asked whether he would condemn supportive comments from david duke. I have to look at the group. I dont know what group you are talking about. You want me to condemn a group i know nothing about. Reporter but trumps comments today are 180 degrees from his stance friday when he was asked about dukes endorsement. I didnt even know he endorsed me, david duke endorsed me, okay, i disavow, okay. Reporter trumps republican rivals pounced. John kasich said trump has some explaining to do. Donald trump refused to disassociate himself and condemn White Supremacists. And thats just horrific, right. We dont have any place for White Supremacists in the United States much america. Reporter ted cruz took to twitter. We should all agree racism is wrong. The kkk is abhorrent. In virginia marco rubio called trumps position unbelievable. We cannot be a party that nominates someone who refuses refuses to condemn White Supremacists and the ku klux klan. We cannot be a party that does that. Increasingly disenchanted with that party and said today he is prepared to run as a Third Party Candidate if necessary. The Republican Party is not treating me right. And theyre not treating the people that i represent right. Reporter and there is some evidence to support trumps claim. A new cbs news battleground poll found more than half of republicans in three super tuesday states georgia, texas and virginia, say the Republican Party does not represent them well. That poll also showed voters in those states believe trump offers the most optimistic message of any republican still in the race. In alabama tonight trump picked up the endorsement of jeff sessions, the states junior senator and long time advisor to trump on immigration policy. Glor major garrett, thank you very much. Hillary clinton expanded her lead over Bernie Sanders with a primary victory in South Carolina last night. Julianna goldman has more on how clinton won and what it means for sanders. Tuesday is the primary. Reporter Hillary Clinton tennessee on sunday setting her sights on the handful of Southern States that vote on super tuesday. And trying to capitalize on her momentum with black voters who propelled her landslide victory in South Carolina. Nearly 90 of africanamerican voters backed clinton yesterday, breaking the record set by then senator obama in 2008. That spells trouble for sanders who hoped to stall clintons momentum heading into states electorate is more diverse. We did really, really badly with older africanamerican voters. I mean we got decimated. Reporter the vermont senator has wrapped up delegates in iowa, New Hampshire and nevada largely with the support of younger and whiter voters. So as clinton stays south, sanders is visiting states where the demographics play to his favor like in oklahoma where he campaigned today. Ai help here in oklahoma on tuesday. Im going to need your help to cheers and applause and im going to need im going to need your help to win the general election. cheers and applause reporter clinton meanwhile is turning her focus away from sanders and pivoting to her next target republican frontrunner n donald trump. Even if like earlier today in a Memphis Church shes not mentioning his name. Il i said last night, america has never stopped being great. Our task is to make america whole. Reporter behind the scenes clinton allies in the Democratic National committee are also working through various strategies to run against trumpin but not all establishmenthm democrats are coalescing behind clinton, Tulsi Gabbard endorsed sanders. More than 1,500 delegates in all are up for grabs in super tuesday in the dozen states. For more weve joined by director of elections anthony salvanto. N we just heard about the democrats. It was just a month ago Hillary Clinton barely won in iowa. Dl it was two and a half weeks ago she was soundly defeated in New Hampshire. What has changed. H the ground has now shifted to very friendly territory for her, jeff. These states have high concentrations of African American voters, they make up the majority of voters in most of these Southern States andt they are solidly behind her. Glor that said you are still seeing some issues. Yeah, she still trails Bernie Sanders on items like being principled to honest and trust worthy, things her campaign win or lose on super tuesday need to shore up in the longterm. Rt glor there was so much talk about marco rubio after the last debate and about the establishment trying to get behind one candidate. Voters dont seem to be listening to that message. When voters hear the word establishment they hear it as a they say they are less likely to vote for any candidate who is seen as too tied to the party establishment. D glor theyre not just siding with trump because they think hes antiestablishment, they think he can win the general. Position to win in november. Glor anthony salvanto, as always, thanks. Thanks, jeff. Glor a young Police Officer is being remembered tonight. She was killed this weekend during her first day on the job. Following an awful series of events in northern virginia. Jamie yuccas has details. Reporter Prince William county Virginia PoliceDepartment Posted this picture of rookie officer Ashley Guindon about to start her first shift. The caption, be safe. Chief steve hudson. She was literally sworn in the day before on friday. Reporter before becoming abe u. S. Marine reservist, she interned for the police department. She clearly had a passion to serve others in a way that went beyond herself. Reporter guindon and two domestic disturbance on saturday. When they arrived, suspect Ronald Hamilton opened fire from the front door. Reporter guindons Training Officer and ten year veteran David Mckeown along with eight year veteran jesse hempen wereht y wounded and are expected to survive. Officers provided first aid to the wounded officers until fire and rescue staff could get a on scene. Later in the afternoon, officer guindon succumbed to her injuries. Ccum reporter hamilton eventually surrendered. Police found his wife dead inside the home. The couple has an 11 year olds son who was not harmed. Hamilton is an active duty Staff Sergeant who works at the pentagon. No one knows why he fired on the officers. Neighbor leon harris described hamilton as a gentle giant. A the guy, he was a good guy. Reporter early sunday morning more than a hundred patrol cars lined up outside the hospital where officer guindon was taken and they provided escort to a young woman whose first day on the job tragically became her last. Hamilton is expected to be in court tomorrow. He faces one count of capital murder of a Police Officer and is being held without bond. And jeff, the county Attorney Says he will seek the death penalty. Glor jamie yuccas, thank you very much. In utah, anger over a shooting by Police Last Night sparked violent protests that closed part of downtown Salt Lake City. Hat heres meg oliver. Reporter violence exploded late saturday night after a Salt Lake CityPolice Officer shot a 17 year old black teenager in the chest and stomach. His friend Celine Mohammed saw the shooting. When the cops came, they ran up to him, pulled their guns out and told him to drop it one time and as he was turning around they shot him. Chest and stomach. Reporter Police Responded to a call to break up a fight outside this homeless shelter. After mohammed refused to drop the weapon. Kutvs Jeremy Harris was one of the witnesses were very they were very angry. You could tell there was a lot of passion. So many people saw this, at any given time there are at least 50 if not a hundred or more people that are standing outside of the homeless shelters. Reporter as the crowd grew angry, protestors launched rocks and bottles at about a hundred police. An absolutely and without question the witnesses say this was about race. In fact several people walking by chanting black lives matter. Reporter all Salt Lake City officers wear body cameras. Police told me they will release the video of the shooting as soon as possible. Meantime, the teenager is in Critical Condition and two administrative leave. Glor meg oliver, thank you. In hesston kansas more details following a mass shooting this past thursday, Manuel Bojorquez is there with a survivor story. Reporter adam miller came face to face with the shooter. I saw him come around the corner and he looked kind of confused. And so i told him he needs to run, there is a fire. And he just looked confused. So i told him again. And he said i know, and then he shot me. Reporter cedric ford shot 17 people thursday including 14 coworkers at excel industries killing three of them before police shot and killed him. Investigators believe he acted out in violence after being served with a protective order taken out by an exgirlfriend. Across hesston today it was a time to come together. At sunday services to honor the victims. And at a townhall meeting where Sergeant Chris carter one of the first on the scene was embraced by the community. The people that worked at that place were phenomenal. Reporter hesston strong has become a motto here. Theyre all going through a really tough time. The least i could do is come out reporter for many, healing also means forgiveness and compassion, even for the killer. I dont know what he was going through but obviously he felt this was the way out. And so my heart just aches for him. Reporter there will be a Memorial Service tonight here at hesston high school. Next week fords exgirlfriend is expected to face a judge for allegedly giving him weapons knowing he was a convicted felon. Jeff . Glor manuel, thank you. Syria remains relatively calm tonight two days into a partial cease fire. But as Elizabeth Palmer reports from homs, the quiet has brought little comfort. Reporter three years ago the old city of homs was the fiercest front line in syria. Then it fell to the government and the wad wasteland and hundreds ofa thousands of homeless people. In some parts residents are trickling back, reestablishing the essentials of life, commerce, even school. This is day two of the partial cease fire and people are holding their breath hoping it will hold. Hear the sounds of fighting, though. But with no monitors anywhere, its impossible to say who is attacking who. The numerous reports of violations today underline what a fragile thing the partial truce is. But 48 hours in, everybody agrees things are much quieter than theyve been in years. So the kind of lasting peace necessary to rebuild in a place like this still feels a very long way off. Elizabeth palmer, cbs news, homs. Glor in iraq today dozens were killed and about a hundred the first went off at an outdoor market in baghdad. Minutes later the same location, up. A group affiliated with isisa claimed responsibility. A series of gas explosions in a russian coal mine have killed at least three dozen. It happened in northern russia above the arctic circle. 81 minors were rescued after the original blast. But those still trapped are presumed dead. Coming up we follow the new e mail trail in the flint water crisis. And a storm battered cruise ship threatened with a sequel when continues. The n her feet. And give her the strength and energy to stay healthy. Whos with me . yay the complete balanced nutrition of great tasting ensure. With 9 grams of protein and 26 vitamins and minerals. Ensure. Take life in ugh heartburn no one burns on my watch try alkaseltzer heartburn reliefchews. They work fast and dont taste chalky. Mmm. Amazing. I have heartburn. Alkaseltzer heartburn reliefchews. Enjoy the relief. My son and i used to watch the red carpet shows on tv now, im walking them. Life is unpredictable being flake free isnt. Because i have used head and shoulders for 20 years. Used regularly, it removes up to 100 of flakes keeping you protected live flake free for life feel secure in your dentures. Feel free to be yourself all day. Just switch from denture paste to seabond denture adhesive seals. 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Reporter just weeks before Governor Rick Snyder declared flints corrosive river waterve unsafe to drink, a deputy at the state Treasury Department tried to discourage a switch back to in this email released this weekend, treasury Deputy Thomas saxon told the governors aides, gentlemen, in the attached is a description of what it would cost to reconnect to detroit provided water. I assume hope no one is still seriously considering that option. E the estimated cost was 12 million a year. The city eventually did reconnect to detroit water in october of 2015. Days after the governor declared flints river water unsafe. The announcement was triggered by an independent study that linked lead poisoning in children to the citys drinking water. Behind the scenes, a former press secretary discussed a plansc to send the governor to flint to quell protests. One thing we keep hearing iswe k that the governor is not involved or is detached. This would be good to show that he is there and he cares. And if we dont announce until hes there, we can avoid the protests and still get the optics. This is what democracy looks like continued. The fallout was eerily predicted in an email sent more than a year ago when the governors special projects manager wrote, this is a Public Relations crisis waiting to explode nationally. Friday the governor admitted that he should have been more directly involved back when his aides first emailed about the problem. Thats where i am kicking myself every day. I wish i would have asked more questions. I wish i wouldnt have accept would have send answers. Im not going to have that happen again. Reporter snyder says hes working to expand healthcare t coverage for Flint Residents and subsidize their water bills. Elephants fivehour tantrum. Yep. Another pill stop. Can i get my aleve back yet . For my pain. I want my aleve. Get all day minor arthritis pain relief with an easy open cap. You cant predict the market. But through good times and bad. At t. 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Watch out, piggies children giggle symbicort. Breathe better starting within 5 minutes. Call or go online to learn more about a free trial offer. If you cant afford your medication, astrazeneca may be able to help. Did you know that meeting your daily protein needs actually helps to support your Muscle Health . Boost high protein nutritional drink can help you get the protein you need. Each serving has 15 grams of protein to help maintain muscle, plus 26 vitamins and Minerals Including calcium and vitamin d to support strong bones. Complete nutritional drink and it has a great tasteguaranteed help get the nutrition you need everyday with boost high protein. Available at these fine retailers. Glor this time it appears better safe than sorry. A threatening forecast forced royal caribbeans anthem of the seas to head home two days early. The ship was d