The Louisiana Democratic Party (, ) is the affiliate of the Democratic Party in the state of Louisiana. Dominated by the conservative planter elite through much of the 19th century, the party was historically prominent in politics since before the American Civil War. It struggled to regain power through Reconstruction, when the Republican Party became competitive due to support by most African Americans and many other Unionists. Democrats won the governorship in every election from 1877 to 1980, when Republican David Treen was elected. Governor John Bel Edwards is a Democrat, and he is the only Democrat elected statewide in Louisiana. Current elected officials Members of Congress U.S. Senate None Both of Louisiana's U.S. Senate seats have been held by Republicans since 2015. Mary Landrieu was the last Democrat to represent Louisiana in the U.S. Senate. First elected in 1996, Landrieu lost her bid for a fourth term in 2014 to Bill Cassidy, who has held the seat since then. U.S. House of Representatives Out of the 6 seats Louisiana is apportioned in the U.S. House of Representatives, 1 is held by a Democrat: Statewide offices Democrats control one of the seven elected statewide offices: State legislative leaders House Minority Leader: Sam Jenkins Mayors New Orleans: LaToya Cantrell (1) Baton Rouge: Sharon Weston Broome (2) Party structure The party and its members are governed by a set of by-laws, which explain how the party is to operate and the responsibilities officials of the party have. The party further operates under a party constitution adopted in 1998 consisting of 11 articles. The articles cover the topics of: subordination, name, purpose, party membership, management, election, composition and appointment of the Democratic State Central Committee, organization of committee, officers, by-laws and amendments. Party leadership is broken up into three section: the Executive Committee, the Louisiana Democratic Central Committee and Parish Executive Committees. The Executive Committee consists of a chairman, four vice-chairman, two DNC committee persons, one DNC at-large, a vice chair of elected officials, a secretary, treasurer, clerk, legal counsel, and a parliamentarian. Each congressional district also receives two seats on the executive committee. The Louisiana Democratic Central Committee consists of a female and male committee member from each of the 105 State House Districts. Parish Executive Committees are set up in a similar fashion as the Party Executive Committee. Members serving in these positions generally serve a term of four years and