A comment on Duverger’s Law

Please pardon the missing thesis statement

The main part of Duverger’s Law states that “a majority vote on one ballot is conducive to a two-party system” (Duverger 1972). By this, he meant plurality elections in single-seat districts (e.g., most Congressional elections) or multi-seat districts in which all seats go to a single winner (e.g., in the Electoral College).

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The ten-way race in MA-03

Strategic voting never goes away.

On Tuesday night and into Wednesday, a crowded Democratic primary in Massachusetts’ Third Congressional District blew up my Twitter feed. There were ten declared candidates, and 52 votes now separate the top two, each of which has 21.6 percent support. Because this is Massachusetts, the winner of the primary will win the general election (unless the party splits). That person will claim a congressional district with barely more than 18,000 votes.

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