Nah, that would have been falling to their level. President Bush has more class than to do something like they do.
First, MLK was a Republican. Second, Bobby Kennedy was assassinated just a few months before MLK was. Third, Bill Clinton's swipe against Bush 41, calling him the frozen chosen, was class warfare. (I had to look it up. I had never heard it before.) And, what's up with 6 hour funerals. Rosa Parks" was 6 hours also. I have never experienced that.
Finally. revisionism is rampant. MLK was an integrationist, and everyone in the room is part of the resegration black power movement that followed. They don't want integration.