Story highlights Trump made the announcement Wednesday morning

He fired the previous FBI director

Washington (CNN) President Donald Trump took to Twitter early Wednesday morning to break the news about his pick for FBI director.

"Details to follow," he wrote at the end of his 128-character announcement of a major appointment.

I will be nominating Christopher A. Wray, a man of impeccable credentials, to be the new Director of the FBI. Details to follow. — Donald J. Trump (@realDonaldTrump) June 7, 2017

But for hours, the details didn't follow, with the White House breaking from the thorough communications roll out that would typically accompany the announcement of a major personnel pick.

It wasn't until five hours after Trump's tweet that the White House finally issued a statement announcing Trump's intent to nominate Christopher Wray to serve as FBI director.

Trump's Twitter announcement Wednesday morning appeared to have caught most of Washington -- if not most of the White House -- by surprise.

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