White House Press Secretary Sean Spicer has resigned.
US media reports that it follows the appointment of financier Anthony Scaramucci as the administration's new communications director.
According to the New York Times, Spicer is said to have told President Trump he "vehemently disagreed" with the appointment.
Spicer confirmed he will stay in the role 'through August', and the current deputy press secretary Sarah Huckabee Sanders will then take over.
President Trump said: "I wish him continued success as he moves on to pursue new opportunities - just look at his great television ratings!"
Mr Spicer has been a controversial figure since taking up the role in January, known for his frequently hostile exchanges with members of the press corps.
His press conferences were memorably parodied by Melissa McCarthy on Saturday Night Live.
