Addisu Demissie is a Democratic Party political strategist. He managed Cory Booker's 2020 presidential campaign, Cory Booker's 2013 U.S. Senate campaign, Gavin Newsom's 2018 California gubernatorial campaign, Rahm Emanuel's 2011 Chicago mayoral campaign, and David Chiu's 2011 San Francisco mayoral campaign. He also worked on the 2008 presidential campaigns of Hillary Clinton and Barack Obama, Clinton's 2016 presidential campaign, and John Kerry's 2004 presidential campaign. He worked for Organizing for America. He also founded 50+1 Strategies.