For the fifth time in a row, the new Congress is the most racially and ethnically diverse ever
More than one-in-five voting members of the U.S. House of Representatives and Senate are racial or ethnic minorities.
How does the way a poll is conducted influence the answers people give?
Detailed information on Pew Research Center international survey meethodology, such as mode of interview, sampling design, margin of error, and design effect, for each country we survey, organized by survey, country and year.
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