Trump slams Rosie O'Donnell during GOP debate

Immigration, ISIS and Iran were sure to come up during the Republican presidential debate Thursday night but viewers probably weren't expecting to hear comedian Rosie O'Donnell's name.

FOX News debate co-host Megyn Kelly asked real estate mogul Donald Trump about disparaging comments he has made about women on Twitter.

Kelly said that in the past, Trump has called women 'fat pigs' and 'slobs.

But Trump jumped in and said: "Only Rosie O'Donnell."

"'No, it wasn't," responded Kelly.

A fired-up Trump responded by saying:

"I think the big problem that this country has is being politically correct. I've been challenged by so many people. And I don't frankly have time for total political correctness, and I'll be honest with you, this country doesn't have time either."

In contrast, O'Donnell took to Twitter to respond simply: "try explaining that 2 ur kids."

Trump and O'Donnell have a history of publicly feuding.