Incumbent Democrat Bob Menendez was re-elected. The seat was previously held by Democratic Governor of New Jersey Jon Corzine. After Corzine resigned and was sworn in Governor, Corzine appointed Congressman Menendez on January 18, 2006. Menendez was challenged by Republican Thomas Kean, Jr. and seven other candidates. Filing for the primary closed on April 10, 2006. The primary election was held June 6, 2006. Menendez became the first Hispanic to hold a U.S. Senate seat from New Jersey, and was the first Latino elected to statewide office in the state.