Still a long ways until the Election, and anything can happen. That said, here's my 2 cents following the Palin Pick
Those that had no intention of voting for McCain or are of the Obama Kool-aide swooning corp, the pick means nothing to them, and you'll ususally find them tripping all over themselves into telling the rest of us how fatally it shot his Presidential chances. In other words, their POV is so biased, we can pretty much ignore such proclamations
Those who had every intention of voting for McCain, and not for Obama, McCain could have chosen Lassie, and they'd still have voted for him
Now, for those who were the real true fence sitters, we have 3 sets
1) Leaning towards Obama, but open to McCain - right here we had Miss Cynthia, steadfast in her support of Obama, now seriously having 2nd thoughts, following the Palin pick. Perhaps even more persuaded, once she grasps McCain's plans for reforming Education
status: Doesn't bode well for Obama
2) Those conservatives that really didn't care for McCain, and were considering sitting this election out. - again right here, you have Bt, seriously now considering voting for McCain, due specifically to the Palin pick. Not in the bag, but........
status: doesn't bode well for Obama
3) True Fence sitters, who care little for either party. Who to vote for?, the lesser of the 2 evils?, 3rd party?, or sit it out? I'd very much like to see both Prince's and Fatman's current levels of voting interest now following the Palin pick. If what I've heard, both at work and those I've heard on the radio, again......
status: doesn't bode well for Obama
Feel free to add any other subgroups
Point being, the notion that this pick "fatally shot McCain's chances" is about 180degrees out of cinc with reality. Then again, you have to consider the source(s). The fact that pick alone LITERALLY took ALL the wind out of Obama's speech is testament to that. It was a brilliant pick, and those that want to harp on her supposed lack of experience, need only look at the top of their ticket. Which is true also, that McCain can't use a sledgehammer to point out Obama's gross lack of experience to run the country. Actually, Biden & Hillary already did that for him, during the primaries. But VP is NOT President. VP is literally an understudy, and given Palin's substantially more executive experience than the Democrats' FRONT runner, again doesn't bode well for Obama