Abstract
Recent research has outlined important changes in partisanship among political elites in the United States. Specifically, the effect of partisanship on politicians’ vote choice and other political behavior has risen, and the number of issue areas where partisan conflict is present has increased. This article examines whether similar changes have taken place among the general electorate. Using data from the NES Cumulative Datafile, the findings presented here do point to changes in partisanship among the mass public. Once thought to be in decline, mass partisanship has rebounded significantly in recent years. In a related development that is perhaps more important, partisanship has become more pervasive within the electorate, with partisan conflict now penetrating into a greater number of issue areas. Partisanship has become relevant in the areas of racial and cultural issues while retaining its importance for issues involving economic equality.

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