Kellyanne Conway takes aim at Bannon in book but hits Trump in process

But in doing so, the former senior counselor to the ex-US president criticises Trump himself, otherwise a notable escapee from her book.

The New Jersey Republican operative was both the first woman to manage a winning presidential campaign and a relatively rare senior staffer to last four years in the chaotic Trump White House.

She charges that others in the Trump White House leaked to the media consistently.

The two were introduced by Rebekah Mercer, a far-right mega-donor whose ownership of Cambridge Analytica, a Bannon-linked data firm which became enmeshed in scandal, remains unexamined by Conway.

Bannon is the only Trump aide to face a criminal charge related to the January 6 attack on the US Capitol. Charged with contempt of Congress, he has pleaded not guilty.