Could 2008 Dem convention be like 1964?

For those old enough to remember, or students of history, the 1964 Democratic convention in Atlantic City became hugely contentious over which of two Democratic slates from Mississippi to seat, either the official but lily-white one, or the Mississippi Freedom Democratic Party.

Now, rguments over Michigan delegates and no chance of a Democratic revote in Florida make me wonder if the same could happen again.

That would mean a floor fight, which in turn would make superdelegates opinions even more valuable.

If not quite as serious as the Democrats in 1964, this could at least be the biggest convention showdown since the Republicans in Kansas City in 1976.