CIA Director John Ratcliffe provided FBI Director Patel the intelligence that was the basis of the search warrant , a source familiar with the matter told NBC News.

The federal agents, along with approximately six FBI vehicles, were seen at Bolton's home for over an hour early this morning around 7 a.m. Local Montgomery County police were observed by ABC News blocking both entrances to Bolton's street but have since left.

Trump, during that first term, was churning through national security advisers with regularity, and Bolton jumped from his role as a Fox News analyst to the White House in March of 2018 after promising Trump “he wouldn’t start any wars” if he was selected, CNN reported at the time.