43% of respondents said it’s very or somewhat important for a candidate to share their religious beliefs (62% of Republican primary voters said it was very/somewhat important).
The Pew Research Center has conducted several topical analyses using this data. Mormonism and Islam: Study gives insights into Americans’ views about Islam, Mormonism and Pope Benedict XVI; responses are broken down in terms of religious and political demographics. It also gives statistics on whether voters would vote for a Muslim or Mormon running for [...]
Republicans are as religious as they were in past decades while Democratic levels of commitment have decreased; there are declines in “traditional” or “conservative” social attitudes.
The most significant spiritual differences between Democrats and Republicans are in the areas of belief and commitment, rather than “arena of behavior.” Democrats are more likely than Republicans to attract a wide variety of religious perspectives.
Pew analysis of the 2006 exit polls: Democratic gains were concentrated among non-Christians and secular voters, while the GOP held on to voters who attend religious services more than once a week and those who attend church at least once a week.