The seat is being vacated by Bob Menendez, who resigned after being convicted of corruption charges.
Competing for the seat is a Democratic congressman from Burlington County and a Republican hotel owner from Camden County.
Rep. Andy Kim (D) is a three-term congressman from New Jersey's third congressional district.
Curtis Bashaw (R) is a businessman and new to elected politics.
New Jersey Correspondent Trish Hartman has a closer look at the candidates.
Also, watch Inside Story EXTRA, where host Matt O'Donnell interviews both candidates.
WATCH | Inside Story Extra - The Candidates for N.J. Senate
Inside Story Extra - The Candidates for NJ Senate