Gerald Mark McNerney /məkˈnɜːrni/ (born June 18, 1951) is an American businessman, politician, and the U.S. Representative for California's 9th congressional district, serving in Congress since 2007. He is a member of the Democratic Party. The district, numbered as the 11th District until 2013, is based in Stockton and includes parts of San Joaquin County, East Contra Costa County, and southern Sacramento County. McNerney holds a Ph.D in mathematics.
