Stephen Bannon, once Donald Trump’s right-hand man in the White House—or, as some would have it, puppet master—is attacking the president. And Trump has answered back.

According to Fire and Fury: Inside the Trump White House by USA Today columnist Michael Wolff, Bannon regularly mocked the president’s understanding of strategy and policy. He also told the journalist that a campaign staff meeting with Russian lawyer Natalia Veselnitskaya at Trump Tower was treasonous and “unpatriotic.” Bannon goes further, saying that he believes Donald Trump Jr. shared the information with his father, and suggesting the family is being investigated for money-laundering by special prosecutor Robert Mueller, according to an excerpt in the Guardian:

You realize where this is going, this is all about money laundering. Mueller chose [senior prosecutor Andrew] Weissmann first and he is a money-laundering guy. Their path to fucking Trump goes right through Paul Manafort, Don Jr. and Jared Kushner…It’s as plain as a hair on your face.

The White House issued a fiery statement attacking Bannon after the book’s contents were released, suggesting that he had “lost his mind.” While there’s no way for us to determine that aspect, like many of the statements released by the Trump administration, it contains a mixture of fact, fiction, and half-truth.

Here’s our annotation: