ANDERSON COOPER (MODERATOR): I've got to ask you about this back and forth between you and Senator Cruz about wives. After saying you were going to spill the beans about Heidi Cruz, you retweeted an unflattering picture of her next to a picture of your wife.
DONALD TRUMP: I thought it was a nice picture of Heidi. I thought it was fine.
COOPER: Come on.
TRUMP: I thought it was fine. She's a pretty woman.
COOPER: You're running for president of the United States.
TRUMP: Excuse me, I didn't start it.
COOPER: But sir, with all due respect, that's the argument of a 5-year-old.
TRUMP: No, it's not.
COOPER: The argument of a 5-year-old is he started it.
TRUMP: Excuse me, you would say that. That's the problem with our country.
COOPER: Every parent knows a kid who says he started it.