Political party strength in Massachusetts

The following table indicates the party of elected officials in Massachusetts:

The table also indicates the historical party composition in the:

For years in which a United States presidential election was held, the table indicates which party's nominees received the state's electoral votes, and whether they Y won the election or N lost the election.

Each time an official is elected or re-elected, a new box for that official is included to indicate their repeated political party strength.

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