In the midst of the spin wars, two facts are indisputable: (1) Clinton ended her long losing streak; and (2) Clinton remains  way behind in pledged delegates because she has yet to prove dominant in winning at any point in the primary season.

To date, of the 13 states she has won, she was the victor in only five states with a margin of 55% or greater: Arkansas (70); Rhode Island (58); New York (57); Massachusetts (56); and Oklahoma (55) -- two of which qualify as home states.

The cold, hard conclusion is inescapable: if Clinton is unable to score convincing victories in her own party's primaries, how is she going to build the broad-based coalition necessary to beat John McCain in November?

And if Clinton is successful in gaining the nomination and beating McCain, she'll do it by the skin of her teeth. We will be looking forward to four more years of a 51-49 America, with a politics defined by polarization -- not progress.