The source confirmed that Barr was unhappy with Trump, and wrote that Bar is “not the one who bully turns the other cheek!”
“He has not made a final decision,” the source said.
On Thursday, Trump refused to say whether he trusted Barr, indicating that the attorney general was not in the president’s favor.
“Ask me that in a few weeks from now. They should look into all this fraud,” Trump told reporters in the Oval Office.
Two White House officials told CNN that while Trump had certainly considered sacking Barr, several people had advised him not to do so.
Barr has faced accusations that he politicized the Justice Department to defend Trump, by implicating himself in the judgment of Trump’s friend Roger Stone and dropping federal charges against former National Security Adviser Michael Flynn.
Trump refused to waive the 2020 presidential election, falsely claiming that the election was riddled with fraud and stolen from him when more people voted for President-elect Joe Biden.
This story has been updated with previous reports.
Caitlan Collins and Veronica Stracwallorsi of CNN contributed to this report.