Alexander Paul George "P.G." Sittenfeld (born October 1, 1984) is an American politician who has been a member of the City Council of Cincinnati since 2011. On January 22, 2015, he announced that he will run for the U.S. Senate seat held by current Republican United States Senator Rob Portman in 2016. In 2013, Sittenfeld received the most votes of any candidate in his bid to return to Cincinnati City Council, and he won by the largest margin of victory in the city's modern history.