Ohio was one of the keys to the Democrats’ taking the US House majority in 2006, right? Certainly, but not to the degree it could have been.
A solid majority (53%) of Ohio voters voted for Democratic House candidates in November, 2006, yet the single-seat district plurality electoral system produced a reversal of the outcome: Republicans won 61% (11 of 18) of the seats in the state’s delegation.
Similar reversals also occurred in Michigan and Iowa in 2006; the latter case went against a Republican voting majority in the state. That a reversal of the electorate’s choice happened in Iowa is a reminder that gerrymandering is not a necessary factor in these reversals: Iowa has a nonpartisan redistricting process, allegedly doing things “the right way.” Plurality reversals are an inherent tendency of single-seat district, plurality electoral systems.