From the Pew poll's crosstabs:

In particular, white Democrats who hold unfavorable views of Obama are
much more likely than those who have favorable opinions of him to say
that equal rights for minorities have been pushed too far; they also
are more likely to disapprove of interracial dating, and are more
concerned about the threat that immigrants may pose to American values.
In addition, nearly a quarter of white Democrats (23%) who hold a
negative view of Obama believe he is a Muslim.

Less educated and older white Democrats, who have not backed Obama
in most primary elections, hold these values more commonly than do
other Democrats.


These
patterns suggest the potential for future reverberations from the
Wright controversy if Obama wins the Democratic nomination. More
conservative beliefs about equal rights and race are not only related
to negative opinions of Obama among Democrats, suggesting the potential
for defections among Democratic voters, but also are associated with
negative views of him in the electorate at large.

An analysis of the survey finds that holding conservative positions
on political and social values is associated with a greater likelihood
of supporting McCain over Obama among Republicans, Democrats and
independents, and all demographic groups. In contrast, however, this
pattern is much less apparent in the Clinton-McCain matchup, excepting
views about women in leadership roles.


One of the few negative trends for Obama following the Wright affair is that a larger number of conservative Republicans hold a very
unfavorable opinion of him in the new poll than did so in February. The
survey also finds that Obama no longer enjoys the favorable image
rating advantage over McCain among independents that was apparent in
previous polls.