Jimmy Kimmel tore into House Intelligence Committee Chairman Devin Nunes Devin Gerald NunesSunday shows preview: With less than two months to go, race for the White House heats up Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington Sunday shows preview: White House, congressional Democrats unable to breach stalemate over coronavirus relief MORE (R-Calif.) for his classified memo that alleges the Justice Department and FBI abused a surveillance program in monitoring a former Trump campaign aide.

"To call Devin Nunes Donald Trump's lapdog would be an insult to dogs and laps," Kimmel said. “He’s more of a retriever — ‘here boy, go write me a memo to smear the FBI, good boy.’”

The late-night host likened Nunes’s memo to President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE’s attacks on the media, saying the document is an attempt to discredit the FBI the way Trump calls the press “fake news” over reports about his administration.

"This is what happens when the only rule in your house is 'You don't like the butler? Well, we'll fire the butler,'" Kimmel said.

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Kimmel also pointed out that Trump has been attacking lifelong Republicans like special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE and former FBI Director James Comey James Brien ComeyTrump jabs at FBI director over testimony on Russia, antifa Graham: Comey to testify about FBI's Russia probe, Mueller declined invitation Barr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' MORE, claiming that they are out to get Trump.

He also noted a report that current FBI Director Christopher Wray, whom Trump nominated, may quit if the memo is released, but that Trump is determined to make the document public.

Kimmel then compared Trump’s willingness to go after and try to discredit those who are investigating him to the defense in the O.J. Simpson case.

"This is basically the same defense O.J. used, OK? And it worked. O.J. lives in Vegas now and plays a lot of golf,” Kimmel said.

The House Intelligence Committee is expected to release the memo in the coming days.