United States Senate election in Louisiana, 2014

United States Senate election in Louisiana, 2014

← 2008 November 4 and December 6, 2014 2020 →
Candidate Bill Cassidy Mary Landrieu Party Republican Democratic Popular vote 712,379 561,210 Percentage 55.9% 44.1%
Runoff results by Parish
U.S. Senator before election Mary Landrieu Democratic Elected U.S. Senator Bill Cassidy Republican

Mary Landrieu
Democratic

Bill Cassidy
Republican

The 2014 United States Senate election in Louisiana was held on November 4, 2014, to elect a member of the United States Senate to represent the State of Louisiana. As no candidate won a majority of the vote, a runoff was held on December 6, 2014.

Incumbent Democratic Senator Mary Landrieu ran for re-election to a fourth term in office against Republican U.S. Representative Bill Cassidy and several other candidates.

Under Louisiana's jungle primary system, all candidates appear on the same ballot, regardless of party and voters may vote for any candidate, regardless of their party affiliation. Louisiana is the only state that has a jungle primary system (California and Washington have a similar "top two primary" system). Since no candidate received a majority of the vote in the primary election, a runoff election was held on December 6 between the top two candidates, Landrieu and Cassidy.

In the December 6 runoff, Cassidy defeated Landrieu by 56% to 44%, settling the fate of the final Senate seat of the 2014 midterm elections. Cassidy's victory gave the Republicans 54 seats in the 114th Congress. Cassidy became the first Republican to hold this seat since William P. Kellogg did so in 1883.