Dick Morris gets to the heart of the matter. Clinton didn’t change anything with last night’s 9-point win.

Hillary Clinton refuses to die. Having been given up for dead after losing Iowa, she rebounded in New Hampshire. Then a string of 11 straight consecutive losses – followed by a win in Ohio and a tie (in delegates) in Texas. Now, she’s won Pennsylvania.

Problem is, it doesn’t mean anything.

Because of the Democratic Party’s arcane proportional-representation rules, her win stands to give her a net gain of 10 to 15 delegates when all is counted. That means that Barack Obama will fall from a lead of 161 in elected delegates to about 145 or so. Big deal.

The primaries coming up in the next two weeks – Indiana and North Carolina – are likely to give Obama back a goodly portion of those delegates. By the time all the primaries have been held, after June 3, there is no doubt that Obama will lead by more than 100 elected delegates, and likely 150. From there, it will be an easy route to the nomination.

The Democratic superdelegates aren’t about to risk a massive and sanguinary civil war by taking the nomination away from the candidate who won more elected delegates. If they ever tried it, we’d see a repeat of the demonstrations that smashed the 1968 Chicago convention and ruined Hubert Humphrey’s chances of victory.

Clinton won Pennsylvania for two key reasons: Only Democrats could vote in the primary, and the Keystone State electorate is dominated by the elderly, who are staunchly for Clinton.

Despite her claims of electability, Hillary has never done well among independent voters. And Obama usually loses the Democrats. Pennsylvania’s closed-primary rules gave her a key advantage.

Barring a game changer, this will be over in June with Obama as the nominee.