Your Voice in Government
Braintree Legislators
Who Represents Braintree
One state representative covers all of Braintree, but the town is split between two state Senate districts, so the senator for your street depends on your precinct. In Washington, all of Braintree sits in one congressional district and is represented by the Commonwealth’s two U.S. senators. Use the lookup tools below to find the exact legislators for your address.
State Senators
Braintree is divided between two Senate districts. Look up your address to find which senator represents your precinct.
Norfolk, Plymouth & Bristol District · Democrat
William J. Driscoll Jr.
Norfolk & Plymouth District · Democrat
John F. Keenan
State Representative
One House district covers the whole town, so every Braintree voter shares the same state representative.
5th Norfolk District · Democrat
Mark J. Cusack
Representative Cusack, a Braintree Democrat and a graduate of Braintree High School, has held the 5th Norfolk seat since 2011 and serves as House chair of the Joint Committee on Telecommunications, Utilities and Energy.
Find Your Exact Legislator
Because Braintree’s Senate seat is split, look up your own address to find your senator:
In Washington
All of Braintree sits in the 8th Congressional District, represented by U.S. Representative Stephen F. Lynch, a Democrat from South Boston who has served in Congress since 2001. Massachusetts is represented in the U.S. Senate by Elizabeth Warren, the senior senator, and Edward J. Markey, the junior senator. Warren was first elected to the Senate in 2012, and Markey in a 2013 special election.
What this seat decides
The state and federal seats
Your State Representative and your State Senator. State law: the driving age, the minimum wage, the bottle deposit, and Chapter 70, the formula that decides how much state money your schools get. They also carry a home rule petition to the State House when your town votes for something state law does not yet allow it to do.
Your member of Congress and your two US Senators. Federal law and federal money, and help with a federal agency like Social Security, the VA, or immigration when someone in your family needs it. They also nominate candidates to the US service academies.
Knowing who represents you is the first step. Learn how to write to them so it lands.
MassCivics last checked this page on September 25, 2026.
Sources
- State legislators: Massachusetts General Court, Representative Mark J. Cusack, as of January 1, 2025.
- Laws and the constitution: Massachusetts General Court, Acts of 2021, Chapter 82, An Act Establishing Senatorial Districts, as of November 4, 2021.
- Federal government: United States Senate, States in the Senate: Massachusetts, as of January 3, 2025.