See the latest Pew Research Center data on U.S. political party affiliation, including trends in voting and elections.

U.S. PoliticsJuly 18, 2018

Taking Sides on Facebook: How Congressional Outreach Changed Under President Trump

Democratic legislators’ opposition to political adversaries on Facebook spiked after Trump’s election, while “angry” reactions to posts by members of Congress increased among followers.

Pew Research CenterMay 23, 2018

Religiously, nonwhite Democrats are more similar to Republicans than to white Democrats

While white Democrats are less likely to be religious than Republicans, nonwhite Democrats more closely resemble Republicans overall on certain religious measures.

Pew Research CenterMay 16, 2018

Democrats, Republicans give their parties so-so ratings for standing up for ‘traditional’ positions

Republicans and Democrats give their own parties only mixed ratings for how well they do in standing up for some of their parties’ traditional positions.

Pew Research CenterMay 14, 2018

Many Republican Millennials differ with older party members on climate change and energy issues

There are significant divides between younger Republicans and their elders in the GOP on a range of environmental and energy issues.

Pew Research CenterMarch 29, 2018

Why do people belong to a party? Negative views of the opposing party are a major factor

Sizable majorities of Democrats and Republicans cite the other party’s harmful policies as a major reason they belong to their party.

Pew Research CenterMarch 8, 2018

Negative views of democracy more widespread in countries with low political affiliation

Across 35 nations, a median of 26% do not identify with any political party in their country. In countries where more people are unaffiliated with any political party, popular support for representative democracy is also lower.