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

U.S. PoliticsOctober 28, 2015

Where Republicans are united, divided on the economy

Here is a profile of Republicans’ views of the economy and economic policy, based on our surveys.

U.S. PoliticsSeptember 16, 2015

Polls show Republicans in a restive mood

Even before Donald Trump and Ben Carson surged past more traditional GOP presidential candidates in the polls, Republicans were feeling restive about their party and its leaders.

U.S. PoliticsAugust 21, 2015

24% of Americans now view both GOP and Democratic Party unfavorably

The rise in frustration, especially this year, is largely concentrated among Republicans and Republican-leaning independents critical of their party.

June 11, 2015

Multiracial in America

Multiracial Americans are at the cutting edge of social and demographic change in the U.S.—young, proud, tolerant and growing at a rate three times as fast as the population as a whole.

GlobalJune 2, 2015

5 key findings about how Europeans view the economy and EU

Despite their increasingly upbeat economic mood, Europeans show growing support for nontraditional political parties critical of the EU.

U.S. PoliticsApril 30, 2015

A Different Look at Generations and Partisanship

When it comes to partisanship, there are sizable variations within generations, as well as between them. The formative political experiences of the youngest and oldest of each generation can differ considerably.

PP_15.04.07_partyID_140px
U.S. PoliticsApril 7, 2015

Party Identification Trends, 1992-2014

Pew Research Center has been tracking the party affiliation of the general public for over 20 years. Explore the party ID data for two dozen demographic subgroups, categorized by gender, race, education, generation, and religious affiliation.

Party-ID-promo
U.S. PoliticsApril 7, 2015

Trends in Party Identification, 1939-2014

For more than 70 years, with few exceptions, more Americans have identified as Democrats than Republicans. But the share of independents, which surpassed the percentages of either Democrats or Republicans several years ago, continues to increase.

U.S. PoliticsApril 7, 2015

Sharp Differences in Party Affiliation

A new analysis of long-term trends in party affiliation finds wide demographic differences in the groups that identify as Republicans and Democrats. Meanwhile, the share of political independents is at a 75-year high.

U.S. PoliticsFebruary 27, 2015

63% of Republican Millennials favor marijuana legalization

Republican Millennials, however, are not as supportive of marijuana legalization as their young Democratic and Democratic-leaning counterparts.