In 2007, Flew published a book titled There is a God, which was listed as having Roy Abraham Varghese as its co-author. Shortly after the book was released, the New York Times published an article by religious historian Mark Oppenheimer, who stated that Varghese had been almost entirely responsible for writing the book, and that Flew was in a serious state of mental decline, having great difficulty remembering key figures, ideas, and events relating to the debate covered in the book. Where his book praises several philosophers, (like Brian Leftow, John Leslie and Paul Davies), Flew failed to remember their work during the Oppenheimer's interview. The article provoked a public outcry, in which atheist PZ Myers called Varghese "a contemptible manipulator."
A further article by Anthony Gottlieb noted a strong difference in style between the passages giving Flew's biography, and those laying out the case for a god, with the latter including Americanisms such as "beverages", "vacation" and "candy". He came to the same conclusion as Oppenheimer, and stated that "Far from strengthening the case for the existence of God, [the book] rather weakens the case for the existence of Antony Flew".
