Top 12 Oregon Republican Election Years Since World War II (Based on Voter Registration Difference)

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These data include statewide Oregon Democratic and Republican registration data since World War II.

Half of the best Republican years were during the 40s and 50s. The other half were during the 90s and 00s.

The difference between the Democratic and Repbulican registration percentages is one way to assess partisan strength.

Source of data: Oregon Secretary of State

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