A new book about the Trump administration has become a blockbuster hit, the Associated Press reports.

Maggie Haberman and Jonathan Swan’s Regime Change: Inside the Imperial Presidency of Donald Trump has sold more than 300,000 copies in its first week on sale, making it the fastest-selling hardcover nonfiction book of the year so far.

The book, published last Tuesday by Simon & Schuster, chronicles the first year of Donald Trump’s second term as U.S. president, based on more than 1,000 interviews with White House insiders and Trump associates, as well as one interview with Trump himself. In a starred review, a critic for Kirkus praised the book as “a powerful chronicle of uninhibited, solipsistic power exercised with few positive results.”

The book has made headlines both before and after its release due to its revelations, including claims that Vice President JD Vance floated the idea of having Tucker Carlson interview Jeffrey Epstein associate and convicted sex trafficker Ghislaine Maxwell, and that Trump once compared himself to Attila the Hun, Joseph Stalin, and Adolf Hitler.

Trump lashed out at Haberman on his Truth Social account, writing, “Based on a very quick and boring briefing concerning the Magot Hagerman book about me, it is mostly made up, Fake News, largely fiction, as have been most of the things she has written about me for so many years. She is a third rate writer and intellect, who has made a first rate income because of your favorite President, ME.”

As of Wednesday morning, Regime Change was the No. 1 bestselling book on Amazon.

Michael Schaub is a contributing writer.