MSNBC host Lawrence O’Donnell detailed his predictions for the end of the Trump presidency on Friday night, suggesting that the Secret Service could physically remove President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE from the White House.

Appearing on Bill Maher’s “Real Time" on HBO, O’Donnell said he thinks Sen. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.) will defeat Trump in 2020.

“The most likely ending of it is when Elizabeth Warren, or whoever the Democratic nominee is, beats him in the next election,” O’Donnell said.

“You think if he loses the election he will just greet her at the door?” Maher responded.

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O’Donnell said that no matter Trump’s response, the chief justice of the Supreme Court will administer the oath of office to the new president on Inauguration Day.

“She becomes president because of the time of day, not because of anything he does,” O’Donnell said. “He doesn’t have to show up, he never has to concede. … The second she takes that oath, she’s the president, he isn’t any longer, Secret Service will physically remove him from the building if he’s still there.”

“Did you ever have to remove a tick from your dog?” Maher joked, comparing the two scenarios.

Warren has said she does not plan to run in 2020, but she is one of dozens of potential contenders who could take on Trump in the next election, including big names such as former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE and Sen. Bernie Sanders Bernie SandersThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Bernie Sanders: 'This is an election between Donald Trump and democracy' The Hill's 12:30 Report: Trump stokes fears over November election outcome MORE (I-Vt.)

Trump announced his bid for reelection earlier this year, announcing his campaign slogan: “Keep America Great.”