Could it be that the percent of Democrats in Churches are approximately the same as percent of Democrats (Christian + non Christian) registered to vote (and voting in typical National election)?
Betty Bowers America's Best Christian - 2008 was released on: USA: 18 January 2008 (internet)
The Duggar family is a very conservative Christian family. They are Republicans, and Jim Bob served 2 terms in the U.S. House of Representatives as a Republican.
There is no specific collective noun for the noun 'democrats' (or 'republicans').Collective nouns are an informal part of language, so any noun suitable for the circumstances or that suits your fancy will work; for example a flock of democrats, a congregationof democrats, a drove of democrats, etc.
the liberal democrats
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Young Christian Democrats was created in 1966.
Christian Democrats - Sweden - was created in 1964.
Slovene Christian Democrats was created in 1989.
Christian Democrats for the Republic was created in 1998.
Slovene Christian Democrats ended in 2000.
United Christian Democrats ended in 2002.
Young Christian Democrats of Lithuania was created in 1993.
United Christian Democrats was created on 1995-07-23.
College Democrats of America was created in 1932.
Young Democrats of America was created in 1932.
Democrats for Life of America was created in 1999.
Many examples, such as the current Christian Democrats and Social Democrats.