In American politics, a "superdelegate" is a delegate to the Democratic National Convention who is seated automatically and chooses for whom they want to vote.These Democratic Party superdelegates include distinguished party leaders, and elected officials, including all Democratic members of the House and Senate and sitting Democratic governors. Other superdelegates are chosen during the primary season. Democratic superdelegates are free to support any candidate for the nomination. This contrasts with convention "pledged" delegates who are selected based on the party primaries and caucuses in each U.S. state, in which voters choose among candidates for the party's presidential nomination. Because they are free to support anyone they want, superdelegates could potentially swing the results to nominate a presidential candidate who did not receive the majority of votes during the primaries.