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 TrumpHow to stand out in the crowd: Kirsten Gillibrand needs to find her niche Countdown clock is on for Mueller conclusions Omar: White supremacist attacks are rising because Trump publicly says 'Islam hates us' 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 ClintonHow to stand out in the crowd: Kirsten Gillibrand needs to find her niche Ex-Clinton aide: Dems should make 2020 'about integrity' Trump mounts Rust Belt defense MORE, Iowa voters and his GOP rival Ted CruzRafael (Ted) Edward CruzCountdown clock is on for Mueller conclusions Ex-Clinton aide: Dems should make 2020 'about integrity' Cruz: House 'fully intends' to impeach Trump 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.