A few weeks ago, I was dubious about 2012 as an “anti-incumbent” election.  Alan Abramowitz brings some better data to bear:

The graph shows that when congressional incumbents lose, they tend to be mostly from one party.  There are really no elections in which large numbers of incumbents from both parties are defeated.

[Cross-posted at The Monkey Cage]

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John Sides

John Sides is an associate professor of political science at George Washington University.