President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE late Thursday tweeted an apparent response to remarks from former FBI Deputy Director Andrew McCabe Andrew George McCabeGraham: 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' GOP votes to authorize subpoenas, depositions in Obama-era probe MORE, who told "60 Minutes" that top law enforcement officials had discussed invoking the 25th Amendment to remove Trump from office.

Trump quoted Harvard law professor Alan Dershowitz, who told Fox News host Tucker Carlson on Thursday that McCabe's comments represented an assault on the Constitution.

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"'Trying to use the 25th Amendment to try and circumvent the Election is a despicable act of unconstitutional power grabbing...which happens in third world countries. You have to obey the law. This is an attack on our system & Constitution,' " Trump tweeted, quoting the professor.

“Trying to use the 25th Amendment to try and circumvent the Election is a despicable act of unconstitutional power grabbing...which happens in third world countries. You have to obey the law. This is an attack on our system & Constitution.” Alan Dershowitz. @TuckerCarlson — Donald J. Trump (@realDonaldTrump) February 15, 2019

The comments followed Dershowitz's remarks to Carlson earlier in the night in which he described efforts to remove the president as "power-grabbing."

"Any Justice Department official who even mentioned the 25th amendment in the context of President Trump has committed a grievous offense against the Constitution," Dershowitz, who is also an opinion contributor for The Hill, said Thursday. "The framers had in mind something very specific, and trying to use the 25th Amendment to circumvent impeachment provisions or to circumvent an election is a despicable act of unconstitutional power-grabbing."

The White House was put on the defensive Thursday after clips from McCabe's interview revealed the former FBI official giving new details about discussions at the Justice Department following the firing of former FBI Director James Comey James Brien ComeyDemocrats fear Russia interference could spoil bid to retake Senate Book: FBI sex crimes investigator helped trigger October 2016 public probe of Clinton emails Trump jabs at FBI director over testimony on Russia, antifa MORE.

McCabe said that there were discussions concerning if Trump was fit to be president and whether the Cabinet should organize efforts to remove him via the 25th Amendment.

The president and White House officials both slammed McCabe on Thursday after the former FBI official's comments.

“His selfish and destructive agenda drove him to open a completely baseless investigation into the president,” White House press secretary Sarah Huckabee Sanders said Thursday. “Andrew McCabe has no credibility and is an embarrassment to the men and women of the FBI and our great country.”