2026 PRIMARY
U.S. Senate · Massachusetts
One seat · current holder Edward Markey (D) · 8 candidates declared
Election day● Sep 1, 2026
General election● Nov 3, 2026
Voter reg deadline10 days before Election Day
Early voting opens17 days before Election Day
State Voting Deadlines
Election Day · Nov 3, 2026- Voter reg · in person
- 10 days before Election Day
- Voter reg · by mail
- 10 days before Election Day (postmarked)
- Voter reg · online
- 10 days before Election Day
- Early voting starts
- 17 days before Election Day
- Early voting ends
- 4 days before Election Day
- Absentee request · in person
- 7 days before Election Day
- Absentee request · by mail
- 7 days before Election Day (received)
- Ballot return · by mail
- Election Day (postmarked)
No-excuse absenteeAutomatic voter registration