"Lies, damn lies and statistics." - "Benjie" Disraeli.
Gender and religious issues may be found in The Des Moines Register poll (news article appears in related link in AOL Welcome screen). Obama is supported by 31% of women voters; Clinton with 26%. While women tend to be very critical of other women, looks like Obama's genial and pleasant personality, lofty idealism and generalities, combined with a vicarious thrill to identify with an African-American may be having an effect. Would logically think (heh, heh) that women would be as supportive of a woman candidate as African-Americans would be of an African-American candidate. As Sister Sledge sang, "We are family . . . I got all my sisters with me." Well, Hillary's got 26%!
Huckabee has 38% support from social and religious conservative voters to Romney's 22%. Rapid research in Iowa religious demographics finds "other Christians" at 1% (non-Protestant, non-Catholic) and "other religions" at 6%. Not able to readily locate how many Mormons in Iowa. Romney's relatively low numbers may indicate residual resistance to a Mormon candidate.