Chuck Todd and those pesky numbers

The point that Obama's Wyoming and Mississippi wins have erased Clinton's delegate gains from Mar. 4 is beginning to creep into the narrative.

But, here's something almost as important that's not yet getting the coverage, "By winning by almost 100,000 votes in Mississippi yesterday, Obama increased his popular vote lead over Clinton to approximately 700,000."

Popular vote is the best remaining argument for Clinton before the superdelegates, so that's a number to begin to watch.