Steven Alexander Horsford is an American politician who served as the U.S. Representative for Nevada's 4th congressional district from 2013 to 2015. A member of the Democratic Party, he previously served in the Nevada Senate, representing the 4th district, in Clark County, from 2005 to 2013. Horsford was the first African American to serve as Majority Leader of that body (2009–2013) and the first African American to represent Nevada in Congress.