US intelligence chief Dan Coats is set to quit after two years on the job and frequent policy clashes with the White House.
President Donald Trump tweeted that Coats would step down on August 15 and he plans to nominate Texas Republican Congressman John Ratcliffe to the post.
Coats is a former Republican Senator from Indiana, who was appointed director of national intelligence in March 2017.
He frequently disagreed with Trump on a number of high profile issues, including US policy towards Russia and North Korea's nuclear weapons programme.
Ratcliffe is a Trump loyalist who defended the president during former Special Counsel Robert Mueller’s testimony about his two-year investigation into Russian interference in the 2016 presidential election.
The post of director of national intelligence was created after the September 11, 2001 attacks.
It oversees the 17 US civilian and military intelligence agencies, including the Central Intelligence Agency (CIA).
US carrying out rescue effort after losing aircraft in Iraq
Suspect shot dead after crashing truck into Detroit-area synagogue
Iran's supreme leader, in first remarks, vows to keep strait closed
FBI investigating fatal Virginia university shooting as act of terrorism
Four Bahrainis arrested for spying for Iranian Guard
Two US sailors injured after non-combat fire aboard carrier in Red Sea
First train to Pyongyang in six years leaves Beijing as neighbours revive link
Six vessels attacked in Gulf, Strait of Hormuz
