"Ouch, Fox News, you pledged to be there for him for better or worse," The Late Show host joked.
On the controversial question of whether Harry Potter should have ended up with Hermione instead of Ron, O'Rourke chose Potter.
Trump has proposed a five percent tariff on Mexican goods to spur the country into action on illegal immigration.
The comedian mocked the president for comments he made to the British journalist Piers Morgan.
The president stormed out of a meeting on Wednesday, claiming Pelosi had accused him of engaging in a cover-up.
The Late Show host made comparisons between current tensions with Iran and the prelude to war with Iraq in 2003.
The K-Pop superstars are currently touring the U.S.
Colbert accused the president of lying to American consumers over the real impact of increased tariffs.
The actress held back tears as she met her hero.
Colbert cut together clips of Wednesday's Senate Judiciary Committee hearing to give his own take on Attorney General's performance.
"I can't take more...more re-dac-tions."
The evidence showed Obama in the White House in a series of adorable images with children.
“I’ve had to read all of Trump’s tweets. All of his staff’s indictments. 127 tell-all books. And none of them told us anything we didn’t already know from just looking at the guy,” the comic said.
Abrams refused to deny she was planning a 2020 run.
Colbert was responding to a speech the president made at a National Republican Congressional Committee claiming wind turbines cause cancer.
Late-night TV host suggested that students planning to vacation in Cancun this year could spend spring break at Trump's wall instead.
Barkley mocked Shaq for being willing to endorse every kind of product on TV.
Colbert said: "If Trump is not working with the Russians, then what the hell is wrong with him?"
"How about this: You stop being terrible, we’ll stop pointing it out,” Kimmel said.
The comical footage was in response to Trump's claim that planes are becoming "too complex to fly."
Interviewing Gabbard on the Late Show Colbert directly asked the candidate why she had been praised by Banon and Duke, a white nationalist.
“Tucker when you defend child brides you don’t go on the naughty list," Colbert said.
Harington poked fun at the cultural impact of the landmark HBO show that made him famous.
John McCain's daughter says her "beef" with the Trump family is "forever."