1801–02 Massachusetts's 12th congressional district special election

A special election was held in MA's 12th congressional district on five occasions between September 25, 1801 and July 29, 1802 to fill a vacancy left by the resignation of Silas Lee (F) on August 20, 1801, prior to the beginning of the 1st Session of the 7th Congress.

First three ballots
The first three ballots had similar results and were held on September 25 and December 7, 1801 and April 5, 1802

Fourth and fifth ballots
Between the third and fourth ballots Cook and Drummer dropped out while Samuel Thatcher (DR) entered the race, eventually winning. The final two votes were held June 7, 1802 and July 29, 1802

Thatcher took office on December 6, 1802