Election results map of the 2012 United States Senate election in Massachusetts by congressional district, coloured by the vote share of the  winning Democratic (Elizabeth Warren) and Republican (Scott Brown) nominees in each congressional district. Election results data from https://docs.google.com/spreadsheets/d/1CKkkO7YmqWSc_zpKHUzyQna-SAb32tYJOaN_CbnyMa0/edit#gid=0
This vector image includes elements that have been taken or adapted from this file:
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