The Candidate Most Likely to Defeat Hilary Clinton is . . . . Tamara Quimiro December 15, 2015Articles, Featured Tonight is the last GOP Presidential debate of 2015 . . . and all eyes will be on . . . Marco Rubio? A new poll indicates he has the best chance of defeating Hilary Clinton in November. The candidate most likely to defeat Hilary Clinton is . . . Marco Rubio