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 has met with investigators on 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's team, and has handed over memos documenting interactions with President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE.

Axios reported Saturday that McCabe, who was abruptly fired on Friday just two days before his expected retirement, touched on what he knows about Trump's move last year to oust then-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.

The memos turned over by McCabe reportedly back up Comey's claims about unusual meetings with Trump in the months before he was fired.

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In those meetings, Trump reportedly asked Comey for a loyalty pledge and later requested that he drop the FBI's investigation into former national security adviser Michael Flynn.

Comey authored his own memos after his meetings with Trump.

McCabe's memos also detail at least one meeting he himself had with Trump, according to Axios. McCabe told CNN that Trump derided his wife, who ran unsuccessfully for Virginia state Senate in 2015, in conversations with him.

Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE fired McCabe on Friday for making an unauthorized disclosure to the press and for misleading congressional investigators.

McCabe has denied those accusations, and has argued in turn that his ouster was politically motivated and intended to undercut Mueller's investigation into Russian meddling in the 2016 election and possible collusion between the Trump campaign and Moscow.

McCabe was set to retire on Sunday.