Fox News founder Rupert Murdoch has reportedly joined the growing calls for Donald Trump to fire his chief strategist Steve Bannon.

Known for his nationalist and "America First" views and once one of the president's key advisers, Mr Bannon, 63, has for months seen his star wane in the White House.

When Mr Trump appointed him chief strategist, he was put on the same level as the president's chief-of-staff Reince Priebus, a nod to the populist base that helped Mr Trump reach the White House.

Now, the president has a new right hand man, John Kelly. The retired Marine general has reportedly told Mr Trump's top staff that he intends to rein in Mr Bannon, who has been accused of leaking damaging stories about Lt. Gen. H. R. McMaster, the national security adviser, and feuding with Mr Trump's son-in-law Jared Kushner.