Charles Krauthammer told Bill O'Reilly tonight that Hillary Clinton will win the 2016 Democratic nomination, with only two possible exceptions.

"If she's indicted, she won't win, and she'll have to drop out," Krauthammer explained. "Or, if there's something truly smoking in those emails, some transactions involving the [Clinton] Foundation that are obviously corrupt. Who knows what's in there."

In the absence of those two unlikely events, Clinton wins the nomination, Krauthammer said. 

He explained that Bernie Sanders is a 74-year-old socialist who wouldn't fare well in the general election, while Joe Biden will peak in popularity on the day he announces and steadily decline.

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