Why measuring the demographics of voters on Election Day is difficult
The two primary sources that provide insight into voter demographics use different methodologies, are released at different times, and often produce slightly different results.
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A major survey of U.S. Hispanics conducted by the Pew Research Center asked more than 5,000 respondents about their religious, social and political views. See how their responses compare to the U.S. general public, and note the differences within the Hispanic population among four major religious groups.