I am no big fan of Clinton's. I think that she often makes disingenuous and/or misleading arguments.
I think that Obama has run a largely reputable campaign (In fact, one of the most reputable I can remember seeing.)
Still, I have been disturbed by the recent attacks on Geraldine Ferraro which have been instigated by the Obama campaign. A Wall Street Journal article today helps to sort through, rather well I think, the times when the Clinton campaign has used racially-loaded arguments and the times when they (and their surrogates) have been unfairly accused of this.