claim: the republican party has "21 percent party id and shrinking."
author: democratic national committee
evidence_1: may 1, 2008 ... even though married white christians have been shrinking as a proportion of the  american electorate, the republican party has been able to maintain ... of the  21st century, republican identification among conservative married white  christians increased by 26 points, going from 64 percent to 90 percent, ...
evidence_2: jul 20, 2017 ... yes, overwhelming percentages of self-identified republicans still approve of his  performance, but that's because dissenters are leaving the party. ... gallup data  supports this idea, showing a four-percentage-point decline in g.o.p.  identification since the 2016 election that is mirrored in other polling, ...
evidence_3: where younger millennials once held a 15-point democrat to republican margin,  we now see this margin shifting to 25- to 29- year olds, while the 18-to 24- year  olds margin is shrinking. party identification by age 2010 vs. 2014 since  2010, we have also noted that there has been a three-percentage point increase  ...
evidence_4: may 24, 2017 ... trump's sizable and enthusiastic base — perhaps 35 to 40 percent of the country  — won't abandon him any time soon, the theory goes, and they don't ... the data  suggests, in particular, that the gop's initial attempt (and failure) in march to pass  its unpopular health care bill may have cost trump with his ...
evidence_5: may 2, 2008 ... even though married white christians have been shrinking as a proportion of the  american electorate, the republican party has been able to maintain ... of the  21st century, republican identification among conservative married white  christians increased by 26 points, going from 64 percent to 90 percent, ...