The Obama Nation: Leftist Politics and the Cult of Personality is a bestselling book by Jerome Corsi intended by its author to oppose Barack Obama's candidacy for President of the United States. The book alleges Obama's "extreme leftism", "extensive connections with Islam and radical politics", "naïve... foreign policy", past drug use and connections to corrupt backers, among other things. The book has been criticized for containing factual errors, for being racially charged, and for being a political "attack book" containing smears, falsehoods, and innuendo.