Racial prejudices could cost Sen. Barack Obama 10 percentage points , he suggests . Poll : 90 percent of white voters have at least a partly negative view of blacks . Experts point out that it 's hard to gauge racial attitudes . Shapiro said while people might say things differently off the record , racial issues can not easily be quantified . Blacks typically get close to 90 percent of the African - American vote .
Racial prejudices could cost Sen. Barack Obama 10 percentage points , he suggests . Poll : 90 percent of white voters have at least a partly negative view of blacks . Experts point out that it 's hard to gauge racial attitudes . Blacks typically get close to 90 percent of the African - American vote .