Stephen ColbertStephen Tyrone ColbertKyrsten Sinema's courage, Washington hypocrisy and the politics of rage Amid multiple crises, Biden runs to NBC's safe space with Jimmy Fallon Biden to appear on 'The Tonight Show Starring Jimmy Fallon' on Friday MORE suggested Tuesday on CBS's "Late Show" that the recent controversy involving President TrumpDonald TrumpNorth Korea conducts potential 6th missile test in a month Kemp leading Perdue in Georgia gubernatorial primary: poll US ranked 27th least corrupt country in the world MORE and Ukraine "might be the thing" that ends the presidency.

"For 2 ½ years, Donald Trump has had scandal after scandal: Russian collusion, obstruction of justice, saying Nazis are fine people, being an unnamed co-conspirator to campaign finance violations, lying about the Moscow Trump Tower, stealing money to pay for the border wall, faking the weather with a Sharpie," Colbert said to open his show.

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"Every time, people have asked, 'Is this the thing? Surely this must be the thing,' and every time, it wasn't the thing. But here's the thing: There's a new thing, and it might be the thing because this afternoon, Nancy PelosiNancy PelosiHouse Republicans bash Democrats' China competition bill Man seen wearing 'Camp Auschwitz' sweatshirt on Jan. 6 pleads guilty to trespassing Democrats should ignore Senators Manchin and Sinema MORE did this thing."

Colbert then played a clip of House Speaker Nancy Pelosi (D-Calif.) announcing a formal impeachment inquiry. The clip elicited a standing ovation from the crowd.

Pelosi's announcement Tuesday came after increasing pressure within the House Democratic caucus amid reports that Trump pressed Ukrainian President Volodymyr Zelensky to investigate former Vice President Joe BidenJoe BidenNorth Korea conducts potential 6th missile test in a month Clyburn predicts Supreme Court contender J. Michelle Childs would get GOP votes Overnight Defense & National Security — US delivers written response to Russia MORE and his son Hunter Biden earlier this year.

Trump has defended his conversations with the Ukrainian leader and said he has authorized the release of a transcript of his July call with Zelensky.

The president’s conversations also launched a complaint from a whistleblower within the administration that the executive branch has refused to turn over to lawmakers.

Pelosi’s move on Tuesday does not definitively mean the House will vote on articles of impeachment, and House committees have already been investigating Trump.