How fierce Trump ally Kash Patel could help reshape the FBI or Justice Department

Last year, as Donald Trump's reelection bid was underway, he declared that a new book by his fiercely loyal adviser Kash Patel would serve as a "blueprint" for his next administration.
"This is the roadmap to end the Deep State's reign," Trump said of the book on his Truth Social media platform.

Titled "Government Gangsters," it calls for a "comprehensive housecleaning" of the Justice Department and an eradication of "government tyranny" within the FBI by firing "the top ranks" and prosecuting "to the fullest extent of the law" anyone who "in any way abused their authority for political ends."

"[T]he FBI has become so thoroughly compromised that it will remain a threat to the people unless drastic measures are taken," Patel claimed in his book. Democrats "should be very afraid," Patel wrote, as Trump and his allies battle "the Deep State" -- what conspiracy theorists claim is a cadre of career employees inside government who are working together to secretly manipulate policy and undermine elected leaders.