After 20 years, data show dramatic changes in party alignment
A new set of data from Pew Research shows some that gaps between the two major parties in measures of education, ethnicity and religion are growing wider.
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Democrats voters face off against gerrymandered districts02:32
After primaries, Democrats have historic vote lead02:12
Ahead of midterms, Democrats lead in cash, candidates and voters02:11
2018 candidate diversity goes beyond gender02:17
'Throw the bums out' coalition changes shape in 201801:48