Weighting Polls on Party Affiliation and Past Vote
This report explains how political weighting works, how Pew Research Center does it, and some of its limitations.
Numbers, Facts and Trends Shaping Your World
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Publications
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2026 primary season yields greatest preelection House turnover in over 3 decades
74 House members won’t return next Congress – more than before any general election since 1992.
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Many Israelis and Palestinians Say They Cannot Coexist Peacefully – and Explain Why
Israelis and Palestinians in the West Bank and East Jerusalem reflect on the viability of a two-state solution
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About 9 in 10 Palestinians in the West Bank and East Jerusalem see Israeli checkpoints as a major problem
A large majority of Palestinians in the West Bank and East Jerusalem (85%) also say that opportunities for work are a major problem for them and their families.
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Who is Hispanic?
More than 70 million people in the U.S. identify as Hispanic today, but government agencies and survey organizations don’t count the Hispanic population in the same way.
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Americans Value Press Freedom but Differ on Its Limits
Many people in the U.S. say some press freedom restrictions are OK when weighed against concerns about false information or national security.
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Quiz: How much do you know about the First Amendment?
How well do you know the First Amendment, including press freedom and other rights? Test your knowledge by taking our quiz.
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The U.S. Constitution is among the hardest in the world to amend
Of all 101 democratic constitutions we examined, the U.S. Constitution has the second-most onerous amendment process.
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About 8 in 10 Americans take supplements, and many see them as important to their health
About eight-in-ten U.S. adults say they are currently taking at least one supplement for their health, according to a new Pew Research Center survey.
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The U.S. Electorate’s Changing Racial and Ethnic Makeup
The share of eligible voters who are White has declined since 2006, while the Hispanic and Asian shares have nearly doubled. The share of Black eligible voters has changed little over the same period.
