Though church and state are constitutionally separated, religion and politics are often intertwined. As Alexis de Tocqueville wrote in his classic Democracy in America (Chicago: University of Chicago Press, 2011), the nation is both highly religious and unapologetically democratic. Some of the most effective political movements in the US political development included the active involvement of churches and religious communities. One reason is that churches and other religious communities in the United States often encourage civic engagement. Civic engagement is a broad concept that includes any activity aimed at changing society, government, or policy. Education and psychology often focus on civic activities such as volunteering or participating in a nonprofit organization. Political science and sociology often use the term “civic engagement” more narrowly to mean “political participation.” This would include activities whose aim is to affect political outcomes. Political participation includes voting, persuading others to vote, campaign contributions, working for a campaign, contacting or lobbying public officials, and protesting. A consistent empirical finding in the study of religion and civic life is that those who are involved in religion are more likely to be more civically engaged as voters, volunteers, and activists. Churches and other religious communities can become active as organizations. They can also increase the civic engagement of their adherents by mobilizing them, providing the skills to participate, or fostering democratic values. Political parties and candidates target religious voters to bring them into the political process. Studies of religion and civic engagement continue to examine the many ways religion affects civic engagement in the United States.