Donald Trump appeared on Bill O'Reilly's Fox News show Monday night to discuss his new book and upcoming debate.
Trump made headlines recently for announcing that he will moderate a GOP debate with conservative magazine, Newsmax. Only two of the seven Republican candidates accepted Trump's invitation to debate: Newt Gingrich and Rick Santorum. Trump also appeared on MSNBC's "Daily Rundown" last week. He had a feisty interview with host Chuck Todd and demanded that Todd tell his viewers that Trump was asked to appear on the program.
Trump sang a similar tune during his Monday appearance on O'Reilly's show. Trump quickly said to O'Reilly, "you asked me to be on this show, I didn't ask you to be on this show. So, we have to get that straight."
O'Reilly told Trump that he needed to "lighten up, man," and "get a sense of humor."
"I only say that because you're my friend," Trump said.
O'Reilly later confronted Trump and asked, "are you the most sensitive guy in the world? You want to kick everybody's butt, but somebody makes fun of you and you're all over the place. If you dish it out, you have to take it!"
Trump told O'Reilly that he did not think he was that sensitive, and that they would "talk about that later."
When O'Reilly asked about the upcoming debate, Trump said he thought it would be more of a "chat" between himself and Newt Gingrich.
"You're going to ignore Santorum?" O'Reilly asked. "Well, he'll be there," Trump said.
Trump also said that he was "disappointed in Mitt Romney," and "shocked" that the candidate did not accept his invitation to debate. On Monday's "Fox and Friends," Trump said that Romney's dip in the polls were because he declined to participate in Trump's debate. "His [Romney's] numbers have gone down very substantially since he said 'no', and a lot people think it's because it showed a lack of decisiveness or a lack of courage in going into this debate," Trump said. "And you look at what happened with Newt. Newt has gone up like a rocket ship."WATCH:
Some of Donald Trump's other feuds: