President Donald Trump fired back at unspecified former associates for publishing books about his campaign and administration.

The president tweeted out a gloating attack on those unnamed associates, who could potentially be Chris Christie, who's promoting a new book about his time with Trump, former White House aide Cliff Sims, who's also made the rounds this week to plug his new book, or even Steve Bannon, who claimed credit for the president's election win in a new documentary film.

"So great to watch & listen to all these people who write books & talk about my presidential campaign and so many others things related to winning," Trump tweeted, "and how I should be doing 'IT.' As I take it all in, I then sit back, look around, & say 'gee, I’m in the White House, & they’re not!'"