Wgtd's The Morning Show With Greg Berg

Craig Unger talks about his latest book, "Den of Spies: Reagan, Carter and the Secret History of the Treason that Stole the White House." The book examines newly-available evidence that people associated with Ronald Reagan's 1980 presidential campaign worked behind the scenes to insure that the American hostages in Iran would not be released before election day - helping to insure the defeat of incumbent president Jimmy Carter.