Russian President Vladimir Putin has unexpectedly dismissed his chief of staff Sergei Ivanov.
Mr Ivanov has been part of Mr Putin's trusted inner circle for many years.
20:43 From 0-100: Presidents' first days come at varying speed13
16:45 Trumps welcome Argentina President Mauricio Macri to White House17
03:29 CONMEBOL chiefs put millions in personal, suspicious accounts17
09:04 This is why the first 100 days is a ‘ridiculous standard’ for judging presidents21