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National Security Advisor

Updated at 4:57 p.m. ET

President Trump has fired national security adviser John Bolton, the lifelong proponent of American hard power, after months of division between the men over the direction of foreign and national security policy.

Trump announced the news Tuesday on Twitter.

Updated at 4:35 p.m. ET

President Trump has announced that Army Lt. Gen. H.R. McMaster will be his new national security adviser. McMaster will replace retired Army Lt. Gen. Michael Flynn, who was forced to resign after revelations that he had misled top White House officials about his conversations with the Russian ambassador to the U.S.

Retired Navy Vice Adm. Robert Harward has turned down the position of national security adviser to President Trump, a White House official tells NPR's Mara Liasson.

Harward was offered the job after Michael T. Flynn, the former general, resigned Monday after just 24 days on the job. Trump said his confidence in Flynn had eroded after Flynn misled then-Vice-President-elect Mike Pence about conversations he had with the Russian ambassador to the U.S.

Updated at 9:59 a.m. ET Feb. 14

President Trump's national security adviser Michael Flynn resigned late Monday night amid allegations he inappropriately talked about U.S. sanctions with a Russian official, and later allegedly misled then-Vice President-elect Pence about the conversations. Flynn spoke with the Russian ambassador in December, before Trump was inaugurated.