The 2013 United States Senate special election in New Jersey was held on October 16, 2013, to fill the New Jersey United States Senate Class 2 seat for the remainder of the term ending January 3, 2015. The vacancy resulted from the death of five-term Democratic senator Frank Lautenberg on June 3, 2013. On June 4, 2013, New Jersey Governor Chris Christie announced that a primary election to fill the vacancy would take place on August 13, 2013 and that a special election would follow on October 16, 2013. Christie appointed Republican New Jersey Attorney General Jeffrey Chiesa to the seat as a placeholder; Chiesa announced at the time of his appointment that he would not be a candidate in the special election.

The 2014 United States Senate election in New Jersey was held on November 4, 2014, to elect a member of the United States Senate to represent the State of New Jersey. Incumbent senator Cory Booker was first elected in a 2013 special election to complete the term of fellow Democrat Frank Lautenberg, who died in office. Booker defeated Jeff Bell (R) to win a first full term.