weijian chang jiang is in washington with the latest. >> she will not clinch the nominations but momentum can carry them through and for a fractured gop that means a greater divide between republicans who will and will not back trump. on the eve of super tuesday trump predicted a win in georgia. >> we're going to win, win, win. >> the latest poll shows the front-runner lead both marco rubio has tried to halt it hammering him for days most recently for failing to disavow former kkk leader david duke who announced his support. >> there's no room in the conservative movement for the kkk or david duke or anyone who will not condemn them. >> senator cruz is banking on a win in his home state to keep his campaign alive. >> what we will see i would think is a chunk of delegates and everyone else far behind. >> they expect hillary clinton to pick up far more delegates than bernie sanders which could make it possible for her to lose the nomination. >> what we need to do together is make america whole again. >> sanders made his final pitch in massachusetts where more than 100 delegates are on the l