Incumbent Democratic U.S. senator Elizabeth Warren ran for re-election to a second term.

The candidate filing deadline was June 5, 2018, and the primary election was held on September 4, 2018.

[1] Warren won re-election, defeating her Republican opponent, state Representative Geoff Diehl.

[2] Governors State legislators Local officials Organizations Newspapers State legislators Local officials Individuals Results by county.

State officials Newspapers Organizations U.S. Executive Branch officials Governors State legislators Local officials Individuals Organizations Newspapers Individuals Newspapers ^Highest rating they assert with Beth Lindstrom with John Kingston with Shiva Ayyadurai running as Republican with Curt Schilling with William Weld Warren won all of the state’s congressional districts.