A Breitbart editor blasted a tweet from 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 attacking his former chief strategist and current Breitbart chairman Stephen Bannon, calling the post "outrageous."

"This is outrageous even by POTUS standards," Breitbart London editor-in-chief Raheem Kassam tweeted late Friday, responding to a tweet from Trump that went after "Sloppy Steve Bannon Stephen (Steve) Kevin BannonJuan Williams: Swamp creature at the White House Engineers say privately funded border wall is poorly constructed and set to fail: report Bannon and Maxwell cases display DOJ press strategy chutzpah MORE."

In a tweet blasting a new tell-all book, Trump claimed that Bannon "cried when he got fired and begged for his job. Now Sloppy Steve has been dumped like a dog by almost everyone. Too bad!"

This is outrageous even by POTUS standards. https://t.co/QSkBlscXmp — Raheem (@RaheemKassam) January 6, 2018

Trump has panned Bannon after his former adviser voiced various criticisms of the Trump administration in author Michael Wolff's new book "Fire and Fury: Inside the Trump White House."

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While Trump has targeted his former chief strategist, Bannon has voiced support for Trump after the release of his comments in the book.

“The president is a great man,” Bannon said on Wednesday on "Breitbart News Tonight," broadcast on Sirius XM.

“You know I support him day in and day out," he continued.

Trump has taunted Bannon after GOP donor Rebekah Mercer, a part owner of Breitbart, distanced herself from Bannon in a statement Thursday, saying her family doesn't "support his recent actions and statements."

Kassam maintained in an interview that their base would not need to choose between Trump and Bannon amid the fallout.

“It sticks all together … If you look at what Steve Bannon is doing, if you look at Breitbart News, it is the only news site in the world which truly endorses the ['Make America Great Again'] agenda, and it doesn’t need to be ‘either/or,' " he told the BBC.