Most--or at least some--of those issues of Mfume compared to Cardin seem like genuine political or character issues with race involved as only a secondary component, if at all. Either way, a valid political argument could have been made for Mfume or Cardin and, in the end, one of them had to win.

As of now, the people who are allegedly using this argument against Obama seem to be using it in place of a political argument for not voting for him.