See the latest Pew Research Center data on U.S. political party affiliation, including trends in voting and elections.
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.
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.
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.
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.
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.
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.
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.
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.
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.
GOP Congress takes over amid public pessimism about an end to divisions
The new GOP-controlled Congress takes office at a time when the American public sees partisan rifts in the country getting worse.