Journalist Michael Tackett, the deputy Washington bureau chief for the Associated Press, will tell the story of the life and career of U.S. Sen. Mitch McConnell in a new biography coming later this year.

Simon & Schuster will publish Tackett’s The Price of Power: How Mitch McConnell Mastered the Senate, Changed America and Lost His Party this fall, the press announced in a news release. It calls the book “the first definitive biography of Mitch McConnell, revealing an intimate look at the personal and political life of one of the most powerful senators in American history.”

McConnell, a Kentucky Republican, was first elected to the Senate in 1984, and has led the Senate Republican Conference since 2007, serving as both minority and majority leader. A conservative, he has sometimes butted heads with Donald Trump and the far-right faction of the GOP.

McConnell, 82, made news last year after two incidents in which he froze while speaking with journalists at press conferences. He later said that he had “completely recovered” from the episodes.

Tackett’s book, Simon & Schuster says, features “expert reporting, unprecedented access, and never-before-published revelations” and “is required reading for anyone interested in understanding one of America’s most influential legislators and the inner workings of our government.”

The Price of Power is scheduled for publication on Oct. 29.

Michael Schaub is a contributing writer.