The primary elections were moved from June 2, 2020, to July 7, 2020, due to COVID-19 pandemic concerns.

[1] Booker won a second full term against Republican Rik Mehta, narrowly winning Morris County, which no Democratic Senate candidate had carried since 1984 when Senator Bill Bradley swept every county.

Booker also received the most votes (2,541,239) in a statewide non-presidential election in New Jersey history.

Key to Booker's landslide victory were heavily populated areas such as Hackensack, Newark, and Trenton.

Mehta did well in Ocean County, which is a Republican stronghold, as well as many rural areas of the state.