In a shake-up of the top ranks of U.S. national intelligence, President Trump announced Thursday that he will name Joseph Maguire, the current Director of the National Counterterrorism Center, as the nation's acting top intelligence official.

Trump made the announcement close on the heels of a tweet disclosing the resignation of the current deputy director of national intelligence, Sue Gordon. Her resignation takes effect on August 15, the same day as that of outgoing Director of National Intelligence Dan Coats, which had already been announced.

The director of national intelligence oversees the country's civilian and military intelligence.

On Maguire's appointment, Trump tweeted:

"I am pleased to inform you that the Honorable Joseph Maguire, current Director of the National Counterterrorism Center, will be named Acting Director of National Intelligence, effective August 15th. Admiral Maguire has a long and distinguished....career in the military, retiring from the U.S. Navy in 2010. He commanded at every level, including the Naval Special Warfare Command. He has also served as a National Security Fellow at Harvard University. I have no doubt he will do a great job!"

Trump praised Gordon in his initial tweet.

"Sue Gordon is a great professional with a long and distinguished career. I have gotten to know Sue over the past 2 years and have developed great respect for her. Sue has announced she will be leaving on August 15, which.... coincides with the retirement of Dan Coats. A new Acting Director of National Intelligence will be named shortly."

Trump initially intended to nominate Rep. John Ratcliffe, R-Texas, as the new DNI succeeding Coats.

But Trump's plan to nominate Ratcliffe ran into a bipartisan wall of opposition from lawmakers who questioned his expertise. The president dropped his intention to nominate Ratcliffe late last week complaining that the Texas lawmaker had been treated "unfairly" by the news media.

Gordon was a career CIA officer who Trump said he could consider as acting DNI, something supporters argue was owed to her by the law. The New York Times had reported that Trump barred her from intelligence briefings in the Oval Office at least once. Publicly, Trump stated, "I like Sue Gordon."

In her letter of resignation, Gordon thanked the president "for the opportunity to serve the Nation as the Principal Deputy Director of national Intelligence for the past two years."

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