A book by a conservative author that claims to dish the dirt on Democrat Barack Obama is set to hit the top of the New York Times bestseller lists this weekend, the newspaper said Wednesday.

The book is called The Obama Nation by Jerome Corsi. From the book: In this thoroughly researched and documented book, the #1 New York Times bestselling co-author of Unfit for Command: Swift Boat Veterans Speak Out Against John Kerry explains why the extreme leftism of an Obama presidency would leave the United States weakened, diminished and divided, why Obama must be defeated and how he can be.

Another Anti-Obama Book out is The Case Against Barack Obama by David Freddoso, which Wednesday was the 16th best-selling book on Amazon.com. From the Book: He’s the media’s darling, the fresh face of the Democratic ticket. But what does Barack Obama really stand for–and will his extreme liberal agenda and complete inexperience in global affairs endanger the country? That’s what David Freddoso, investigative reporter and National Review Online columnist, examines in The Case Against Barack Obama.