A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Knowing who voted is critical to developing an accurate understanding of an ...

Pew Research Center conducted this analysis to explore partisan identification among U.S. registered voters across major demographic groups and how voters’ partisan affiliation has shifted over time.

The Department of Homeland Security figure comes with caveats, researchers who study population demographics told CBS News, ...

Budget strains, survey gaps and political pressure fuel uncertainty over key measures of inflation, jobs and growth. U.S. policymakers are increasingly anxious about the integrity of certain ...