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

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.

U.S. PoliticsOctober 24, 2017

Political Typology Reveals Deep Fissures on the Right and Left

The U.S. political landscape is dominated by partisanship, but there are divisions within both partisan coalitions on such issues as immigration, America’s “openness” and the size and scope of government.

U.S. PoliticsOctober 5, 2017

Key takeaways on Americans’ growing partisan divide over political values

Our surveys conducted in June and July found little common ground among Republicans and Democrats on fundamental values. Here are eight takeaways.

U.S. PoliticsSeptember 13, 2017

Republicans much ‘colder’ than Democrats in views of professors

More Republicans offer a cold than warm view of college professors when asked to rate them on a “feeling thermometer.”

U.S. PoliticsSeptember 7, 2017

Democratic voters are increasingly likely to call their views liberal

The share of Democrats who describe their political views as liberal has steadily risen and is now 20 percentage points higher than in 2000.

U.S. PoliticsAugust 29, 2017

Views of racism as a major problem increase sharply, especially among Democrats

The share of Americans who say racism is a “big problem” in society has increased 8 percentage points in the past two years – and has roughly doubled since 2011.