Steve Bannon, the executive chairman of Breitbart News, is stepping down from the news organization, the news outlet confirmed Tuesday.

The change comes days after conservative megadonor Rebekah Mercer cut ties with Bannon after a new tell-all about the Trump White House revealed he made unflattering comments about the president and his family.

Mercer holds a minority stake in Breitbart.

Breitbart confirmed Bannon stepped down in a statement on their website and said he would assist with a "smooth and orderly transition."

“I’m proud of what the Breitbart team has accomplished in so short a period of time in building out a world-class news platform," Bannon said in a statement.

A source close to Bannon told the Washington Examiner the former White House aide's political activities had begun to distract from Breitbart's news operation.

That source said Bannon was ultimately confronted with a choice between his political activism and his role at Breitbart.

Bannon was appointed executive chairman of the news organization in 2012, but left to join the Trump campaign as its chief executive in August 2016. He then went on to serve as White House chief strategist until he left the administration last year.

He then returned to Breitbart in his previous role of executive chairman.

Bannon was credited with helping to build Breitbart into a populist force, but questions surrounding his future at the news organization swirled last week after excerpts from the new book Fire and Fury: Inside the Trump White House were published last week.

In the excerpts, Bannon called a June 2016 meeting Donald Trump Jr. attended at Trump Tower with a Russian lawyer “treasonous” and called Trump Jr. “unpatriotic.”

The comments sparked a feud between President Trump and his one-time chief strategist.

In a bombshell statement released last week, Trump said Bannon “has nothing to do with me or my presidency.”

“When he was fired, he not only lost his job, he lost his mind,” the president said.

White House press secretary Sarah Sanders suggested Breitbart should “consider” parting ways with Bannon.

The rift between Trump and Bannon prompted Mercer to distance herself from Bannon.

In a statement Thursday, Mercer said neither she nor her family had communicated with Bannon in several months, and “have provided no financial support to his political agenda, nor do we support his recent actions and statements.”

Bannon apologized for his comments Sunday, which the White House rejected.

"Donald Trump Jr. is both a patriot and a good man," Bannon said in a statement. "He has been relentless in his advocacy for his father and the agenda that has helped turn our country around."