From Opinionator, New York Times blog:
I called Tesler up to ask him to ask him how his findings jibed with
Goldman’s demonstration of declining prejudice. He said that Goldman’s
work found that “the effects were very small.” Tesler remains convinced
that since Obama emerged as the Democratic nominee in the summer of
2008, “all racial measures are increasing in importance” and that
divisions between blacks and whites are increasing. He does not hold
back. “Obama,” he told me, “has had a negative effect on racial
polarization.” [read more]