The book claims to document "Obama's extensive connections with Islam and radical politics", his "religious affiliation with ... black-liberation theology", and his associations with controversial pastor Jeremiah Wright, fundraiser Tony Rezko,[9] and radical activists Bill Ayers and Bernardine Dohrn, formerly of the Weather Underground.

[22] During the 2004 United States presidential election, he co-wrote Unfit for Command, a book associated with Swift Vets and POWs for Truth that was critical of Democratic candidate John Kerry.

The book was published by Threshold Editions, a division of CBS-owned Simon & Schuster, whose chief editor was Republican Party political strategist Mary Matalin.

The reality is that there are many lie-filled books like this in the works cobbled together from the Internet to make money off of a presidential campaign... We will respond to these smears forcefully.

"[8] In addition, the Democratic National Committee joined the "counteroffensive" telling its supporters by email: "The media have shown that they aren't going to stop him.

[1][41][42] This has led some Obama supporters to suspect that conservative groups have made bulk purchases to inflate sales, something Corsi denies.

[3] Politico reported that Corsi's book "left a trail of wild theories, vitriol and dogma that have called into question his credibility.

[9] According to Slate, "neither Corsi nor Matalin responded to e-mails from me asking whether they intended to correct any errors in The Obama Nation – it would be a miracle if there were none" [emphasis in original].

[11] Corsi also writes: "Obama's mother chose another Third World prospect for her second husband, a second man of color, to be her mate", noted by CNN as "lines some might consider racially insensitive.

"[8] The Los Angeles Times also pointed to a line by Corsi claiming "Obama wants to will all the white blood out of himself so he can become pure black," citing "bigoted comments.

"[53] The Chicago Sun-Times called it "an abomination," and said the book "exploits racial fears [and] hate in [an] effort to scare white America.

"[10] Corsi has drawn criticism for scheduling an appearance to promote the book on The Political Cesspool, a "pro-White" radio talk show described as "white nationalist" by the Southern Poverty Law Center.

Contradicting that, Kim Barker, a foreign correspondent for the Chicago Tribune reported: "Interviews with dozens of former classmates, teachers, neighbors and friends show that Obama was not a regular practicing Muslim when he was in Indonesia".