Christine O'Donnell, the conservative activist and former Republican candidate for U.S. Senate from Delaware, is about to get a new title: author.

O'Donnell's first book is scheduled to go on sale Tuesday. It's titled "Troublemaker: Let's Do What it Takes to Make America Great Again."

O'Donnell won a surprising primary victory in the Republican U.S. Senate race in Delaware nearly a year ago. In her new book she criticizes adversaries for undermining her campaign while admitting errors in her own decisions.

Democrat Chris Coons ultimately beat O'Donnell in the general election.