Obama isn't the messiah that you bunch make him out to be; he can't predict or control what everyone can say
There are over 700 people working for him; another 4000 or so volunteers who are 'regulars,' and another 10k who volunteer from time to time. How would you, dear reader, like to be held responsible for every comment and decision made by 18 thousand or so people?
Obama's campaign did what was appropriate; said that this wasn't their policy, that it was wrong, and that they apologized and it wouldn't happen again. What else were they supposed to do?
I don't believe that the fact that members of Obama's campaign make mistakes, or say things they shouldn't, is a sign that Obama isn't interested in running a cleaner campaign. If he refused to respond to their issues, it would be. But his responses have been pretty clear each time.
Of course, for some haters, nothing he does will ever be good enough.
Cycloptichorn