“What if the scariest political thriller you ever read were a true story?...After decades of investigation, [Unger’s] finally collected all the receipts and laid them out for the world to see. He brings a stunning amount of research to the table, but he also constructs his narrative like an expert thriller. This perversion of justice will chill you, especially because it still resonates today.” — Apple Books, Monthly Staff Pick
“Unger’s narrative paints a colorful panorama of a multinational private intelligence network run by the shambolic spymaster Casey, who later became CIA director…The result is a persuasive affirmation of a shocking conspiracy theory.” — Publishers Weekly (starred review)
“[Unger] argues that Jan. 6, 2021, wasn’t the first instance of Republican treason…A compelling account of political wrongdoing.” — Kirkus Reviews
“Den of Spies is not just a summation of his years of steady research into the plot, and not even just a play for redemption; it’s a referendum of sorts on a style of journalism that once ruled the day…the once-debunked October surprise has shifted over the same decades into the realm of high plausibility (though nothing close to agreed-upon history). And Unger and a few other reporters of his generation are responsible. They think that what actually happened still matters.”
— The Atlantic
“Craig Unger’s latest investigative book, Den of Spies, is important, and not only for its dogged detailing of what one can now reasonably conclude was the stealing of the 1980 presidential election by Republican Ronald Reagan’s campaign team…Does he make the case? I think he does—because he has the receipts.” — SpyTalk
“[Unger] has painstakingly investigated the concept of the October surprise through secretive contacts in 1980 between Iranian operatives and William J. Casey, President Reagan’s campaign manager . . . A valuable book in which Unger reveals the long lasting repercussions of this October surprise on American and Iranian public life.” — Library Journal