Ex-Trump adviser Steve Bannon is charged with fraud over fundraising to build a Mexican border wall.Read more
The US president commented on his former adviser being arrested on fraud charges.
Former Trump adviser Steve Bannon claims a border wall will help black and Hispanic communities.
President Trump's ex-strategist tells the BBC he expects Boris Johnson to deliver a "no deal, hard exit".
Strategist Steve Bannon, credited with helping get Donald Trump into the White House, turns his attention to European politics and the EU elections in May 2019.