Steve Bannon, the former Donald Trump campaign chief, has resigned from Breitbart News after a backlash over his involvement in a critical book about the president.

Mr Bannon said in a statement: “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”.

He was Breitbart News’s executive chairman and had left the White House last summer to spend more time working on the right-wing website.

It came after Mr Trump publicly attacked Mr Bannon when he was quoted extensively in the book Fire and Fury, which painted a negative portrait to the president.

Rebekah Mercer, the Republican donor and minority shareholder in Breitbart News, issued a statement last week distancing herself from Mr Bannon.