The rising influence of evangelicalism in American political behavior, 1980–2004

Connections between evangelicalism and political behavior are explored using National Election Study (NES) data from 1980 to 2004. Our findings suggest that although white evangelical support for Republican presidential candidates has increased, the independent effect of evangelicalism on voting has weakened. We argue that this reflects an increasing convergence between evangelicalism and Republican Party identification. Beginning in the 1990s, as more and more evangelicals identified as Republicans, the independent effect of their religious commitment on voting weakened. We also find strengthening correlations between evangelicalism and policy preferences, especially on non-social issues, and enhanced Republican mobilization of evangelical voters in recent campaigns. We conclude with the suggestion that changes in evangelical political behavior over a 24-year period support the notion of an electoral realignment in American politics.