Marco Rubio won Thursday night's Republican presidential debate by a mile in the focus group conducted by Republican pollster Frank Luntz. GOP voters in the focus group called the Florida senator "charming" and "a great orator," praising him as personable and knowledgeable on policy. In the focus group, 16 people picked Rubio as the winner, four picked Donald Trump, two picked John Kasich, and one picked Ted Cruz, according to Luntz.