Kansas's 1st congressional district is a congressional district in the U.S. state of Kansas. Commonly known as "The Big First", the district encompasses all or part of 60 counties spanning more than half of the state, making it the seventh-largest district in the nation that does not cover an entire state.

Gerald Wesley Moran is an American lawyer and politician who is the senior United States senator from Kansas, a seat he has held since 2011. A member of the Republican Party, he was chair of the National Republican Senatorial Committee for the 113th U.S. Congress, during which he led successful Republican efforts in the 2014 election, producing the first Republican Senate majority since 2006. Previously, he was a member of the United States House of Representatives, representing Kansas's 1st congressional district.