Republican presidential candidate Marco Rubio blasts Donald Trump for not condemning the Ku Klux Klan strongly enough. Rough Cut (no reporter narration).
ROUGH CUT (no reporter narration) STORY: On the eve of the biggest voting day in the race to pick the 2016 U.S. presidential candidate, Republican presidential hopeful, Marco Rubio took aim at front-runner Donald Trump. "He can't win. That's the other big problem. He can't - he's unelectable now. He refused to criticize the Ku Klux Klan. He's now been given three interviews. This morning on the Today Show, he blamed it on a bad ear-piece - that he couldn't hear the question. I don't care how bad the ear-piece is, Ku Klux Klan comes through pretty clearly, and he refused to criticize it. How are going to elect... how can someone like that be our nominee?" Senator Rubio said, speaking before supporters in Tennessee. Trump has won three out of the first four state contests to pick the Republican nominee for the Nov. 8 presidential election. He looks set to amass more victories when 11 states, many in the South, hold nominating contests on Super Tuesday. Trump leads opinion polls in many of those states, as well as in most national polls where he has a double-digit advantage over Rubio and Texas Senator Ted Cruz. His progress toward the nomination, boosted by a surprise endorsement from New Jersey Governor Chris Christie on Friday, has alarmed many in the Republican establishment.