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Andrew McCabe has been interviewed by special counsel Robert Mueller

Last Updated Mar 17, 2018 8:25 PM EDT

Special counsel Robert Mueller has interviewed fired former FBI deputy director Andrew McCabe, sources familiar with the investigation told CBS News. McCabe was asked by the firing of James Comey as well as his own conversations with President Trump, CBS News' Paula Reid reports. 

McCabe kept memos of his conversations with Mr. Trump and what happened during Comey's firing and Mueller is in the possession of the memos. 

The documents, Reid reports, provide important corroboration of Comey's accounts for an obstruction of justice investigation. 

Attorney General Jeff Sessions fired McCabe late Friday night at the recommendation of FBI officials, to the applause of Mr. Trump. McCabe was fired less than two days before he could retire on Sunday. McCabe has called his dismissal a part of what he said was a "war" on the FBI.

Comey also kept memos from his conversations with Mr. Trump. A federal judge has ruled that those memos should remain secret for now.

Shortly after McCabe's firing, Mr. Trump's personal lawyer, John Dowd, called on Deputy Attorney General Rod Rosenstein to "end" the Russia probe. 

"I pray that Acting Attorney General Rosenstein will follow the brilliant and courageous example of the FBI Office of Professional Responsibility and Attorney General Jeff Sessions and bring an end to alleged Russia Collusion investigation manufactured by McCabe's boss James Comey based upon a fraudulent and corrupt Dossier," Dowd wrote to CBS News.

"Just end it on the merits in light of recent revelations," he added.