Flashback: Ted Cruz vs. Donald Trump, Biggest Debate Clash

On September 23, Sen. Ted Cruz announced his intention to vote for Donald Trump. In this debate back-and-forth from February 13, Cruz and Trump engaged in their most heated battle of the campaign (RealClearPolitics)

Here is an excerpt:

CRUZ: "For most of his life his policies have been very very liberal. For most of his life, he has described himself as very pro- choice and as a supporter of partial birth abortion. Right now today as a candidate, he supports federal tax payer funding for Planned Parenthood. I disagree with him on that. That's a matter of principle and I'll tell you..."
TRUMP: "You probably are worse than Jeb Bush. You are single biggest liar. This guys lied - let me just tell you, this guy lied about Ben Carson when he took votes away from Ben Carson in Iowa and he just continues. Today, we had robo-calls saying. 'Donald Trump is not going to run in South Carolina,' -- where I'm leading by a lot.' I'm not going to vote for Ted Cruz. This is the same thing he did to Ben Carson. This guy will say anything, nasty guy. Now I know why he doesn't have one endorsement from any of his colleagues."
CRUZ: "Don, I need to go on..."
TRUMP: "He's a nasty guy."