Theyre favored many most of the 13 state primaries and caucuses. For democrats, its a step toward certainty. For republicans another jolt in the partys identity crisis. Polls show trump leading in at least six states, but he is trailing ted cruz in cruzs home state of texas. The republican race, heady, profane and unprecedented, now has prominent republicans talking of an independent candidate if trump wins the nomination. Race became the weapon of choice today and Major Garrett is with the republicans. Reporter following the news that former kkk leader david duke was supporting donald trump, a group of black lives matter protesters interrupted a trump rally in virginia. [bleeped] [bleeped]. A Time Magazine photographer tried to leave the press area to shoot the protesters as they were escorted from the venue. He was thrown to the ground by a secret service agent. Photographer chris morris later admitted to cursing at the agent physical. Morris said the agent grabbed him by the neck and put him in a chokehold. Im dealing with some real sleaze bags up here, believe me. I think the press is worse. Im telling you. Theyre worse than the politicians. Reporter trumps make a sport of criticizing reporters and makes it clear protesters are unwelcome. Out. Get out. Out. Reporter trumps momentum toward the g. O. P. Nomination has brought a sharper edge to his alreadyraucous rallies. Marco rubio complained today the gutter rhetoric makes headlines. What a sad indictment on the state of the political debate in this country today. [applause] reporter but yesterday rubio himself dove into the mud. And you know what they say about men with small hands. You cant trust them. You cant trust them. Reporter rubio is hoping for Strong Enough finishes tomorrow to stay competitive in the delegate count while ted cruz is banking on a victory in his home state of texas. And we are, i believe, going to have a big chunk delegates. And i think everyone else will be way, way, way behind. At that point it will become abundantly clear this is a twoman race. Reporter the secret service interviewed the agent involved at the trump rally. Agency policy is to protect the candidate, not interfere with news gathering. The photographer involved, chris morris, has said he will not press charges. Pelley especially not after the way he provoked the agent. Major garrett reporting for us. Major, thank you. All of this followed trumps various responses to the support that he is getting, wanted or not, from the ku klux klan. Today mitt romney said trump has been disqualified. Heres Dean Reynolds. Reporter campaigning in virginia today, donald trump was boasting again. We have amazing endorsements, and the people that really mean. We have hundreds of people now that want to endorse. Reporter but praise from david duke, former grand wiz of the ku klux klan, may test his following more than ever. Voting for these people. Voting against donald trump at this point is reallyre your heritage. Reporter last friday trump seemed the say no thanks. I disavow. Okay. Reporter but sunday he declined to renounce the kkk, duke or his support. I dont know anything about david duke. Okay. I dont know anything about what youre even talking about with White Supremacy or white supremacists. So i dont know. Reporter trump eventually tried to clear up any confusion. I disavowed david duke all weekend long on facebook and twitter. Reporter he said a bad earpiece made it hard to hear the question about the kkk on sunday, even though he used the same one for several interviews. In any case its clear some far right groups like what theyre hearing from him. Thats won the backing of the neonazi web site the dail stormer, for example, and the American National super pac is making calls in super tuesday states. We dont need muslims. We need smart, welleducated white people who will assimilate to our culture. Vote trump. Reporter the southern poverty law center, which tracks hate group, says was started by the white supremacist American Freedom party. Mark potok of the splc said trumps rhetoric is a coded appeal to racists. The idea that any mildly educated person in this country could not know what the ku klux klan was is perhaps one of the most ludicrous statements weve heard in mainstream politics in many years. Reporter the super pac backing marco rubio put hit the way. Trump refuses to denounce the kkk. Think about that. For president . Reporter donald trump has been heavily criticized before, scott, and so far his support for the nomination among voters in the party of Abraham Lincoln has held firm. Pelley Dean Reynolds reporting for us tonight. Dean, thank you. The polls are pointing for a very good super tuesday for hillary clinton. Heres nancy cordes. Nancy unanimous thank you reporter campaigning in virginia clinton said the republican candidates are behaving like gray schoolers. Remember the little box that used to be on your kids report cards, plays well with others . Id have to put a big no. Reporter shes poised to make the deans list tomorrow. The latest cbs news Battleground Tracker shows clinton leading sanders by 20 points in virginia, 24 points in texas and 28 points in georgia. Other polls have her up in tennessee, alabama and massachusetts. And shes the former first lady of arkansas. That leaves sanders hoping for a strong showing in oklahoma, colorado, minnesota and his home state of vermont. We can win. No question here in minnesota. If we have the turnout. Reporter the two have found common cause in their distaste for donald trump. When sanders called trump a hatemonger online, Clinton Retweeted it. But otherwise she has begun to focus less on him and more on her likely race against one advantage i have is theyve been after me for 25 years and im still standing. Reporter the state department is releasing its final batch of clintons 30,000 emails tonight, but, scott, that does not mean that the saga is over. The f. B. I. Is still looking into her use of a private server and a federal judge wants some of her top aides to testify about it. Pelley nancy cordes with the democrats tonight. Nancy, thank you. Well, John Dickerson is our cbs news political director and anchor of face the nation. At the top of the broadcast, we talked about the identity crisis with the republicans. Whats going on with the party . Reporter well, if there is a wall between the Republican Party and donald trump, its now ten feet taller. In conversations today with republican strategists and staffers at the hill, they are at wits end about what it would be like to have donald trump as the party nominee. They pointed out in his interview that he seemed to be trying so carefully not to offend anyone and call anyone a bigot when he was a suddenly he got politically correct. What they think, republicans i talk to think, is he was basically trying to not offend any southern voters. So in super tuesday tomorrow, what house and Senate Leaders worried about is what is it going to look like in the fall when they and their colleagues have to respond to every incendiary thing he says. People i talked to today were coming up with all kinds of fantastic notions about how they could take the nomination away at the convention or how they could put a thirdparty candidate if he became the nominee, slip a Third Party Candidate in there. Its hard to tell whether theyre more unsettled about being tainted by trump or by the fact theres not much they can do to stop him from getting the nomination. Pelley John Dickerson. Thank you very much, john. In ohio today, a 14yearold opened fire on classmates in a School Cafeteria north of cincinnati. Two students were hit, two others were hurt in the panic that followed. None of the injuries is caught nearby. No word yet on a motive. In virginia, the funeral is tomorrow for the Prince William county Police Officer who was gunned down on her first day on the job. Today the prosecutor said he may seek the death penalty. Heres justice correspondent jeff pegues. Reporter 28yearold Ashley Guindon was a decorated marine corps reservist who was just beginning a new career as a Police Officer. But her first day in uniform would be her last. All units respond. Shots have been fired. Reporter on saturday night she and two other officers were responding to a Domestic Violence call at this home. As the officers approached the front door, they were shot. I know hes got a long gun. We got some people who need some assistance over here. Reporter guindon was rushed to the hospital where she was pronounced dead a few hours later. The two other officers are expected to survive. Police say 32yearold ronald officers with a rifle. Hamilton, a Staff Sergeant in the u. S. Army, is also accused of killing his wife, crystal hamilton, in the home. The couples 11yearold son managed to run to safety. According to the army, hamilton worked in i. T. At the pentagon for the joint Staff Support center. He joined the army in 2002 and served in iraq for two tours. Prosecutors say hamilton had a previous runin with the law but would not release details. Prince William County prosecutor paul ebert. Sad, sad, sad. Its an example of an officers worst nightmare. Reporter officer guindon grew up in merrimack, new hampshire. In her 2005 High School Yearbook she wrote, live for something rather than die for nothing. Guindon is the 14th Police Officer killed in the line of duty so far this year. Scott, 11 of the 14 were killed by gunfire. Thats a number thats risen dramatically compared to the same time last year. Pelley jeff pegues. Thank you, jeff. Turning overseas now, isis has been losing ground on the battlefield, but its apparently striking back with a series of bombings in and around baghdad these past two days. More than 100 were killed. Most at this marketplace in a shiite neighborhood. Isis sunni the other main faction of islam. The u. S. Ceasefire in syria is holding for the most part, but a atline set up by the u. S. State department for syrians to all right violations has been ringing off the hook. The civil war has left many of syrias cities in ruin, and Elizabeth Palmer got rare access to homes. A city that once had as many residents as philadelphia but now just a fraction. Reporter after four years and megatons of explosives, the syrian army finally took back the city fighters. But several rebels escaped into the suburb of al waar, where they tried the make a last stand. In the end, though, the violence was too much. Under siege and outgunned, the rebels caved in and agreed to talk. Theyre just out of sight at the end of that road. The syrian army wouldnt allow us in, but they do allow the women out to get medical care and to shop for food. Whats changed . Now there are formal negotiations going on with the government, they tell me. Life has improved. The siege has ended and our electricity and water are back. Supplies are flowing in, too, though every single box is checked by the military. And every canister of gasoline is probed for hidden weapons. But now what . In december six bus loads of rebels and their families struck a deal for safe passage out of al waar to an o further north. That leaves about 1,000 left. Theyre stuck, still trying the hammer out the terms of their defeat. There have been several of these, call them stalemate, call them minitruces, across the country in the last couple years, scott. They dont always go smoothly. Some are more successful than others, but in the end they almost certainly save lives. Pelley Elizabeth Palmer in the syrian capital damascus tonight. Liz, thank you. The label said 100 Parmesan Cheese, but it was 100 wrong. Theres a new warning about a contraceptive implant used by hundreds of thousands of women. And the best of america awarded the medal of honor when the cbs evening news continues. Being hacked and intellectual property being stolen. That is cybercrime and it affects each and every one of us. Microsoft created thegi dital crimes unit to fight cybercrime. 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. Were building what we learn back into the cloud to make people and organizations safer. Ive been blind since birth. I go through periods where its hard to sleep at night, and stay awake during the day. Learn about non24 by calling 8448442424. Whose long dayis sheldon setting up the news starts with minor arthritis pain and a choice. Take tylenol or take aleve, the 1 recommended pain reliever by orthopedic doctors. Just two aleve can keep pain away all day. Back to the news. Pelley if you love cheese, this news was pretty unappetizing. Some parmesan contains wood pulp. An executive at a Pennsylvania Company plead guilty to selling cheese that had no relation to what was on the label. We asked jim axelrod to take a look. Reporter you would think when f. D. A. Investigators found castle cheese marketing 100 Parmesan Cheese that was actually 0 parmesan, the company had a problem. The product that they were marketing and which was on the label was not what they were selling. Reporter just attorney David Hickton brought the case against the company after an f. D. A. Inspection in 2012 found the companys parmesan was actually a mixture of cheaper cheeses like swiss and cheddar, and in one case an unknown ingredient. Advertising it as parmesan and romano and putting Something Else so the supplier could make more money. Thats just clearly fraud on the consumer. Reporter this was fraudulent in your view . Yes. Reporter but we found fraud might not be the worst of it. Thf. Finished cheese was stored in this unfridgerated room, which could cause bacteria to thrive. Whats more, the Company Found listeria, a potentially deadly pathogen, in its production area ten times, but castle continued to produce and sell its cheese to stores like target and walmart without testing it. That might be troubling enough if we didnt also find records from the Pennsylvania Department of agriculture which inspected castle around the same time as the f. D. A. Those records tell a very different story. In june of 2012, state inspector David Trotter wrote, the plant continues to be in excellent condition. I appreciate the plant management and the quality work they do. His glowing reviews continued until august of 2013 when he left the department of agriculture for a new job. Director of Quality Control at castle cheese. Im reporter we asked trotter to explain his reviews of castle, but he to declined. Castle cheese is no longer on the market. The company filed for bankruptcy in 2014. As for the f. D. A. , it will be rolling out new food safety regulations. The f. D. A. Tells us theyre designed to help get state and federal inspectors on the same page. Pelley jim, thank you very much. Well, chris rocked the oscars last night. Up next, how many people saw him trustit powers. Sher with cascade platinum. politely wait, wait, wait you bakedon . Dish issues . Onna work. Through. Your toughestuckon food. Better than finish. Cascade. Try cool mint zantac. Hey, need fast heartburn relief . It releases a cooling sensation in your mouth and throat. Zantac works in as little as 30 minutes. Nexium can take 24 hours. Try cool mint zantac. No pill relieves heartburn faster. Unless you have allergies. , then your eyes may see it differently. Only flonase is approved to relieve both itchy, watery eyes and congestion. 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Said its issuing its strongest warning about essure, an implantable, permanent contraceptive device used by threeyearts of a million women. Some have complained of chronic pain and bleeding. The f. D. A. Ordered the manufacturer, bayer, to conduct a new safety study. It stopped short of removing the device from the market. And we will be right back. The life behind it. Have earned the very best service in return. Usaa. We know what it means to serve. Get an Auto Insurance quote and see why 92 of our members plan to stay for life. I thought i neededuggled cigarettes to cope. I was able to quit smoking. And then i started running. Now, i feel a lot better. announcer you can quit. For free help, call 1800quitnow. Youre down with crestor. Alright now theres a way you can get crestor for 3. Adding crestor, along with diet, lowers bad cholesterol. Crestor is not for people with liver disease, or women who are nursing,pregnant, or may become pregnant. Tell your doctor all medicines you take. 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Reporter to call edward byers a combat veteran doesnt come close. So am i reading here correctly, thats five bronze stars, two purple hearts . Thats correct. Reporter so how many combat tours have you done . Ive done nine combat tours. Reporter in 2012, as a member of seal team six, he was sent to rescue an american, dr. Dilip joseph, who had been kidnapped by the taliban. As they approached the building, the point man saw they had been detected. He saw a guard come out of the door, and he shot him. And we started sprinting toward the door. Reporter the point man, nicholas cheque, went in first. He was shot and later died. I was the second person in. When i entered the room and saw another enemy standing there with a weapon, i shot him, and then i saw another person that was moving across the floor. Didnt know whether or not that person was the american hostage or if he was an enemy, so i moved down toward him. I was able to get on top of him and pin him down with my legs. Reporter he was adjusting his night vision goggles trying to get a better look at the person beneath him when he heard dr. Joseph call out from another part of the room. Thats when i shot the person i was on top of and jumped off him and on to the doctor who was like three or five feet away. Why did you jump on the doctor . Andy we did that because we were wearing body armor and we want to protect him from any other potential threats. When i did, that i realized there was another enemy within arms reach of where were laying and so i was able to hold him against the wall by, you know, grabbing him around the throat and that was. That gave enough time for our teammates to get in there and to take care of that threat. Reporter when you say take care of that threat, how did that work . Our teammates came around and reporter you were holding him by the throat against the wall . Correct, yes. Reporter when it was over, five taliban and one navy seal, nicholas cheque, lay dead or dying. Dr. Joseph was shaken but alive. How long did this last . Probably it took a minute to actually go in the room and take care of everything we just talked about. Reporter thats a lot of action going on in a very confined space. Thats the nature of this job. Its close quarters combat. Reporter and it takes longer to tell it than it did to happen. Yes, it does. Reporter now there is a medal of honor to go with those five bronze stars and two purple hearts. You have to wonder how many other minutes of close quarters combat edward byers saw in his nine combat tours. One thing for sure, hell never tell. David martin, cbs news, washington. Pelley and thats the cbs evening news for tonight. For all of us at cbs news all around the as a Small Business owner, you know things have a way of moving fast. But if your network cant keep up, it can really slow you down. So switch to the 100 Fiber Optic Network of verizon fios. Youll get 99. 9 network reliability, and the fastest wifi available. For a network that moves as fast as your business. Right now, upgrade to fios 50 meg or higher internet and phone and get 250 back. Call or go online today. Small business is better on a better network. Right now at 7 00, a Major Development in the murders of two young women as Jesse Matthews agrees to a deal to avoid the death penalty. And a last minute campaigning in far fax. And trump get them out. And trump interrupted, well show you the protesters forced out of the Campaign Stop in virginia. First, a Police Procession is abouts to start in Prince William county as we give you a look in Law Enforcement officers taking the first step in the emotional process to say goodbye to one of their own. Im jan jeffcoat. And