Acting White House chief of staff named

Updated December 15 2018 - 9:41am, first published 9:39am
Donald Trump tweeted that Mick Mulvaney 'has done an outstanding job' in his administration.
Donald Trump tweeted that Mick Mulvaney 'has done an outstanding job' in his administration.

US President Donald Trump has announced that budget director Mick Mulvaney will be his next chief of staff.