He then attempted to downplay the significance of Mr Bannon.

"But Mr Bannon came on very late, you know that.

"I went through 17 senators, governors, and I won all the primaries. Mr Bannon came on very much later than that, and I like him.

"He's a good man. He is not a racist, I can tell you that. He's a good person. He actually gets a very unfair press in that regard.

"But we'll see what happens with Mr Bannon, but he's a good person, and I think the press treats him, frankly, very unfairly."

He then defended the cause close to Mr Bannon's heart - the so-called "alt right". Mr Bannon has described Breitbart, the website he formerly ran, as a platform for the white supremacists and neo-Nazis known as the "alt-right".