Thomas A. "Tad" Devine (born June 11, 1955) is an American political consultant. Devine was a senior adviser in Al Gore's 2000 and John Kerry's 2004 Presidential campaigns. He currently is a senior adviser for Bernie Sanders' 2016 presidential campaign. He has worked on ten winning campaigns for President and Prime Minister around the world and 17 winning U.S. Senate races. Devine is currently the president of Devine Mulvey Longabaugh, a Washington D.C.-based media consulting firm.