WATCH: Trump Says Iran Negotiators Looked at John Kerry and Thought 'What a Schmuck'

In his latest attack against the Obama administration's Iran nuclear deal, Donald Trump singled out John Kerry.

Short Transcript:

DONALD TRUMP: Look at the deal we have with Iran... Did you ever see a deal take so long? The deal has been going on forever. They had our prisoners. We never asked for our prisoners. How about that? Having a deal is good. But we should have doubled and tripled up the sanction and negotiated from strength. We should have done it so easily. Instead, we have Kerry that goes on bicycle races. He's in a bicycle race, he's 73 years old. 73 years old! And I said it the last time I spoke. I swear to you I will never enter a bicycle race if I'm president. I swear. I swear! He's in a bicycle race. He falls and breaks his leg. This is our chief negotiator. He's walking in and they're looking at him thinking what a schmuck.