Donald Trump insults Carly Fiorina; Sanders leads Clinton

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NEW YORK, NY - When the Republicans gather for a second debate next week, things might be a little tense, especially since Donald Trump can't stop running his big mouth.

He's verbally attacked almost all of his opponents, saying Rick Perry "put on glasses so people think he's smart," Marco Rubio "was really weak on immigration," Jeb Bush is "very low energy" and Ben Carson "makes Bush look like the Energizer Bunny."

But it's what he said about Carly Fiorina in Rolling Stone that's really raising eyebrows. The article quotes Trump as saying, "Look at that face! Would anyone vote for that? Can you imagine that, the face of our next president."

Trump continues: "I mean, she's a woman, and I'm not s'posedta say bad things, but really, folks, come on. Are we serious?"

He's since backed off that statement, saying he was talking persona. But he has Fiorina fired up.

"I'm not going to spend a single cycle wondering what Donald Trump means," said the former HP CEO, "but maybe, just maybe I'm getting under his skin a little bit because I am climbing in the polls."

Over on the Democratic side of the race, things are getting heated too. Hillary Clinton's slipped to second in New Hampshire and now Iowa as Bernie Sanders takes the lead.