Roger Stone is a giant in the world of politics during the last half century. Since 1968, Stone has worked on the campaigns of Republican politicians, including Richard Nixon, Ronald Reagan, Jack Kemp, Bob Dole, George W. Bush, and Donald Trump. In addition to frequently serving as a campaign adviser, Stone was a political lobbyist. In 1980, he co-founded a Washington, D.C. based lobbying firm with Paul Manafort and Charles R. Black Jr. By 1990, it was one of the leading lobbyists for American companies and foreign organizations.