Sen. Larry Craig, R-Idaho, is writing a book that will reflect on the turmoil after his arrest last year in an airport sex sting.

Craig, 62, is retiring from in January after 18 years in the Senate and a decade in the House.

He told KTVB-TV in Boise, Idaho, the book will focus on "the state of politics" in Washington, but also will review his career, including his arrest by an undercover officer in a men's room at the Minneapolis airport.

"There will be a bit of what's happened in the last year and the way it evolved," Craig said. "I think that's important for Idaho and those outside Idaho who are interested to know."