On February 19, Donald Trump informs Acting Director of National Intelligence Joseph Maguire that his likely replacement will be in his office the following morning. This all comes after confusing him for another staff member.
On Feb. 13, Shelby Pierson, an analyst for the Office of the Director of National Intelligence, testified in a classified hearing to the House Intelligence Committee that Russia preferred the current president to win in the 2020 election.
A number of Republicans objected, and Ms. Pierson’s testimony was relayed to Mr. Trump. The next day, on Feb. 14, he interrupted a routine briefing on election security, according to one of the meeting’s participants. He asked the director of national intelligence at the time, retired Vice Adm. Joseph Maguire: “Hey, Joe, I understand that you briefed Adam Schiff and that you told him that Russia prefers me. Why did you tell that to Schiff?”
The New York Times
Maguire resigns on February 21.
Sources
https://www.nytimes.com/2020/08/08/us/politics/trump-russia.html?action=click&module=Top%20Stories&pgtype=Homepage
https://www.nytimes.com/2020/02/21/us/politics/richard-grenell-dni.html