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38 governorships 36 states; 2 territories | |||||||||||||||||||||||||
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 Map of the results Republican hold Democratic hold Democratic gain No election | |||||||||||||||||||||||||
United States gubernatorial elections were held on November 7, 2006, in 36 states and two territories. The elections coincided with the midterm elections of the United States Senate and the United States House of Representatives.
Democrats won open Republican-held governorships in Arkansas, Colorado, Massachusetts, New York, and Ohio; and they defeated Republican incumbent Bob Ehrlich in Maryland while retaining all of their seats, including their lone open seat in Iowa. Meanwhile, Republicans held open seats in Florida, Idaho, and Nevada, as well as Alaska, where incumbent governor Frank Murkowski was defeated in the primary. Voters in the United States territories of Guam (then-Republican) and the United States Virgin Islands (then-Democratic, but term-limited) also chose their governors and voters elected a new mayor for the District of Columbia, the District's chief executive.
As part of the 2006 Democratic sweep, Democrats did not lose a single incumbent or open seat to the Republicans in any congressional or gubernatorial contest. The results of the 2006 elections gave Republicans 22 governors to the Democrats' 28, a reversal of the numbers held by the respective parties prior to the elections. Republicans held the majority of governorships from 1995 until 2007.
As of 2024, this election marked the last time that the Democratic Party won gubernatorial elections in Iowa, Ohio, Oklahoma, Tennessee, or Wyoming. This is also the very last gubernatorial election cycle in which the Republican Party won governorships in California, Connecticut, Hawaii, Minnesota, and Rhode Island to date.