Question: Which American lobbyist, lawyer and politician was once defeated by Bel Edwards?
Related documents: [0]  [DOC] The Louisiana lieutenant gubernatorial election took place on October 24, 2015, to elect the Lieutenant Governor of Louisiana, with a runoff election held on November 21, 2015. Incumbent Republican Lieutenant Governor Jay Dardenne did not for re-election to a second full term in office. He instead ran for Governor. Billy Nungesser won the election defeating Kip Holden, despite a Democratic victory in the gubernatorial election, in which John Bel Edwards defeated David Vitter by a similar margin. [END] 
[1]  [DOC] David Bruce Vitter (born May 3, 1961) is an American lobbyist, lawyer and politician who served as United States Senator for Louisiana from 2005 to 2017. He was the first Republican elected to the Senate from his state since the Reconstruction Era. Previously, he served in the United States House of Representatives, representing the suburban Louisiana's 1st congressional district. He served as a member of the Louisiana House of Representatives before entering the U.S. House. [END] 
Answer: 
David Vitter
David Vitter