Trump on His Penis: "I Guarantee You There's No Problem."

The GOP debate has gone off the rails.

Thursday's GOP debate got right to the heart of one of the most pressing issues of the presidential campaign: Donald Trump's allegedly tiny hands. After Fox News' Bret Baier asked Sen. Marco Rubio about his personal attacks on Donald Trump over the last few days, Trump brought up the fact that Rubio had attacked the size of his hands—falsely claiming that he'd never heard that critique before. Then Trump pivoted to his, um, manhood.

"He referred to my hands, if they're small, something else must be small," Trump said. "I guarantee you there's no problem. I guarantee it."