WASHINGTON (AP) — Former White House chief strategist Steve Bannon is stepping down as chairman of Breitbart News Network after a public break with President Donald Trump.

Breitbart announced Tuesday that Bannon would step down as executive chairman of the conservative news site.

A report on the Breitbart website quotes Bannon saying, “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.”

Trump has lashed out at Bannon for comments made in an explosive new book that questions the president’s fitness for office.