The most recent
Gallup poll, for the period July 19-25, 2010,
shows (scroll down) the President's approval rating among Blacks and Hispanics is down. Obama's approval rating among African-Americans dropped to a still high 85% from the 90+% ratings he had earlier. His ratings among Hispanics also declined to 55% from earlier ratings over 60%.
While not dramatic changes, weakening approval among those the President has to consider his base must be worrying for the White House. The softer numbers must be read as disappointment with President Obama.
A 2012 Democratic challenge against the President increasingly looks possible.