Finally, the Pennsylvania Primary

It's about time. We've waited for weeks now since the last big primary and today we find out whether the Hillary Clinton campaign has any viability left:

PHILADELPHIA — Hillary Rodham Clinton was looking for a decisive win in Tuesday’s Pennsylvania primary to save her flagging candidacy, while front-runner Barack Obama hoped for an upset or a strong enough finish to move closer to ending their epic Democratic presidential nomination battle.

The two Democratic hopefuls barnstormed the state in a final pitch for votes in the most populous and delegate-rich state remaining in the nominating contest. Some 4 million Democrats were eligible to cast ballots, with 158 delegates at stake.

Clinton was relying on a decisive win to save her flagging candidacy, while Obama hoped for an upset or a strong enough finish to secure the delegates needed to maintain his overall lead.

Late polling showed Clinton with a single-digit lead in the state, after besting Obama by 20 points or more in earlier surveys.

The final polls I've seen have Hillary with a 6 or 7 point lead, and historically she has performed better on election day than in the polls, so a double-digit win is certainly possible. She really needs it if she's to have much of an argument left with the superdelegates.

At this point, though, I'm not sure she'd get out of the race even if she lost in Pennsylvania. With every passing day there seems to be some new unflattering revelation about Obama, all of which over time paint a picture of a candidate who won't have such an easy time beating steady old John McCain.

I'll report on the results later tonight.