American political consultant and lobbyist (born 1952)
Roger Jason Stone (born Roger Joseph Stone Jr.; August 27, 1952) is an American political consultant and lobbyist. He is Donald Trump's longest-serving political adviser, best known for the Mueller special counsel investigation and his alleged involvement with and connections to Russian interference in the 2016 U.S. presidential election as a consultant for the Trump campaign. Since the 1970s, Stone has worked on Republican campaigns, including those of Richard Nixon, Ronald Reagan, Jack Kemp, Bob Dole, George W. Bush, and Trump.
https://en.wikipedia.org/wiki/Roger_Stone