President Donald Trump isn't done tweeting about Michael Wolff's new book or Steve Bannon. Not by a long shot.

According to Trump, his former White House strategist "cried when he got fired" and was the chief source for Wolff's book Fire and Fury: Inside Trump's White House, which he added was "really boring and untruthful."

"Michael Wolff is a total loser who made up stories in order to sell this really boring and untruthful book. He used Sloppy Steve Bannon, who cried when he got fired and begged for his job. Now Sloppy Steve has been dumped like a dog by almost everyone. Too bad!

Michael Wolff is a total loser who made up stories in order to sell this really boring and untruthful book. He used Sloppy Steve Bannon, who cried when he got fired and begged for his job. Now Sloppy Steve has been dumped like a dog by almost everyone. Too bad! https://t.co/mEeUhk5ZV9 — Donald J. Trump (@realDonaldTrump) January 6, 2018

Trump dropped Bannon from the White House in August, although the two men remained in touch afterward. As recently as October, Trump referred to Bannon as a friend and said they had a "very good relationship."

After excerpts of Wolff's book revealed Bannon making disparaging remarks about Trump and his family, including calling Donald Trump Jr.'s meeting with Russian officials at Trump Tower "treasonous," Trump released a statement this week saying his former campaign chairman had "lost his mind."

Bannon lost the financial and political support of the billionaire Mercers over his remarks, and his future at Breitbart News is up in the air.

The Mercer Family recently dumped the leaker known as Sloppy Steve Bannon. Smart! — Donald J. Trump (@realDonaldTrump) January 5, 2018

Wolff's book has set off a firestorm in Washington this week. The New York author spent months inside the West Wing talking to administration officials and has painted a portrait of a frenetic, incompetent White House, headed by a president described by aides as a child.

Trump's legal team sent a cease-and-desist letter to try to quash the book, which had its publication moved up to Friday and looks to be a bestseller.