Steven Alexzander Horsford is an American politician and businessman serving as the U.S. representative for Nevada's 4th congressional district since 2019, previously holding the position from 2013 to 2015. A member of the Democratic Party, he 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 (2009–2013) and the first African American to represent Nevada in Congress. He lost to Republican nominee Cresent Hardy in 2014.

Nevada's 4th congressional district is a congressional district that was created as a result of the 2010 United States census. Located in the central portion of the state, it includes most of northern Clark County, southern Lyon County, most of Lincoln County, a sliver of Churchill County and all of Esmeralda, Mineral, and Nye counties. With a Cook Partisan Voting Index rating of D+3, it is the equal most Democratic districts in Nevada, along with Nevada’s 1st congressional district.