Late-night talk show host Stephen Colbert moderated an "all-Trump" debate on CBS's "The Late Show" Thursday night.

Presidential contender Donald TrumpDonald John TrumpO’Malley tells Dems not to fear Trump Right way and wrong way Five things to know about the elephant trophies controversy MORE skipped Thursday's Fox News Republican debate due to his long-running feud with moderator Megyn Kelly and a mocking press release issued by the network on Wednesday.

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"With zero Trump in tonight's debate, there are now 24 million viewers up for grabs and I am grabbing them," Colbert said. "If Fox News has no Trump, then I am all Trump."

"The 2016 Top Tremendous All-You-Can Trump Luxury Presidential Debate" featured clips of Republican front-runner giving contradictory answers on a range of subjects, including Hillary ClintonHillary Diane Rodham ClintonO’Malley tells Dems not to fear Trump FBI informant gathered years of evidence on Russian push for US nuclear fuel deals, including Uranium One, memos show Pelosi blasts California Republicans for supporting tax bill MORE, Iowa voters and his GOP rival Ted CruzRafael (Ted) Edward CruzTexas Republicans slam White House over disaster relief request Dem rep: Trump disaster aid request is 'how you let America down again' Moore endorsements disappear from campaign website MORE.

When Colbert asks the business mogul how he feels about the Hawkeye State, a clip plays of Trump saying "I love Iowa, we've done very well here."

Colbert then poses that question to the "other" Trump and another clip shows him saying "How stupid are the people of Iowa?"

"We will find out on Monday," Colbert responds, referring to next week's Iowa caucuses.

He also plays a clip from a 2011 interview where Kelly asks Trump if he thought he would be a better moderator than her.

"No, I could never beat you," the billionaire responds. "That wouldn't even be close. That would be no contest. You have done a great job by the way, and I mean it."

Colbert then plays a clip from Wednesday of Trump attacking the Fox News anchor.

"I have zero respect for Megyn Kelly, I don't think she's very good at what she does and I think she's highly overrated," Trump says.