It's the only way Obama can remain as a candidate to be Hillary's VP, is to toe the party line on the plantation.
I think we might be missing Obama's point on this one. He is not questioning Bush's assertion that whites live longer than blacks. He is offended that, rather than examining the reasons behind the racial disparity in life expectancy, Bush is merely offering blacks the option of private accounts. I think Obama is implying that if given the choice, blacks would rather the President tackle racist sentencing guidelines, poverty, inadequate public education, and health care, than give them the option of investing in private accounts because they don't normally live to see 55.