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.

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 ...

DECOTA transforms open-ended survey responses into clear themes -- helping policymakers make better use of underutilised public feedback. DECOTA transforms open-ended survey responses into clear ...