"If you thought the president hated Jimmy Kimmel Live! when it was hosted by Jimmy Kimmel, buckle up, people."

Rosie O'Donnell is this week's guest host while Kimmel's on vacation, following runs by Tiffany Haddish, Ike Barinholtz, and Colman Domingo.

No fan of Donald Trump, the comedian and screen legend criticised the president without naming him directly during her monologue. O'Donnell said she left the U.S. for Ireland in 2025 after the election, all because of "Mango Mussolini."

"I read that Project 2025 and said, 'Got to get myself out of here,'" she said.

O'Donnell and Trump's feud goes back further than the election, however, to 2006 when the comedian called Trump a "snake oil salesman" on The View. Trump has constantly made derogatory comments and posts about O'Donnell, even threatening her U.S. citizenship in 2025. O'Donnell has been a longtime critic of Trump, recently referring to him as "everything that is wrong with America."

"Hi, I know you're watching," O'Donnell said down the camera on Monday.

We're in for a week.

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