Reagan demonstrated that, in the hands of a talented TV performer, one joke could sink a thousand facts. But he had enjoyed another advantage as he cruised to victory in 1980: an all-star roster of morally dubious advisers. His gang of goons included Roy Cohn, the disgraced former aide to Senator Joseph McCarthy, and three hard-charging political consultants, Roger Ailes, Roger Stone, and Paul Manafort. It was hard to imagine another Republican presidential candidate assembling such a team, or coming up with a campaign slogan as winning as Reagan’s: “Let’s Make America Great Again.”