By Greg Sargent – September 1, 2008, 6:20PM

On the same day that the Republicans were forced to dramatically cut back their convention activities, the Palin Meltdown unfolded with extraordinary speed. It’s worth pondering the totality of what happened today, in a mere half day…

* The news that Palin once backed the Bridge to Nowhere went national.

* It emerged that Palin has links to the bizarro Alaska Independence Party, which harbors the goal of seceding from the union that McCain and Palin seek to lead.

* The news broke that as governor, Palin relied on an earmark system she now opposes. Taken along with the Bridge to Nowhere stuff, this threatens to undercut her reformist image, something that was key to her selection as McCain’s Veep candidate.

* The news broke that Palin’s 17-year-old daughter became pregnant out of wedlock at a time when the conservative base had finally started rallying behind McCain’s candidacy.

* Barely moments after McCain advisers put out word that McCain had known of Bristol Palin’s pregnancy, the Anchorage Daily News revealed that Palin’s own spokesperson hadn’t known about it only two days ago.

* A senior McCain adviser at the Republican convention was forced into the rather embarrassing position of arguing that McCain had known about the pregnancy “last week” — without saying what day last week he knew about it.

* It came out that Republican lawyers are up in Alaska vetting Palin — now, more than 72 hours after it was announced that she’d been picked.

* Palin lawyered up in relation to the trooper-gate probe in Alaska — a move that ensures far more serious attention to the story from the major news orgs.

What else will come out today? After all, there are still six hours left until September 2nd…