President Trump dismissed Surgeon General Vivek Murthy Friday night, replacing him with the deputy surgeon general as he moves to name his own people to the administration.

What happened: Murthy "was asked to resign from his duties as Surgeon General after assisting in a smooth transition into the new Trump Administration," Health and Human Services spokeswoman Alleigh Marré said in a statement. "Secretary [Tom] Price thanks him for his dedicated service to the nation."

Who's in charge now: Rear Admiral Sylvia Trent-Adams is now the acting surgeon general.

Why: There was no official word, but Murthy, who released a report last year on the dangers of addiction, had made enemies because of his opposition to e-cigarettes.