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In this poll, Palin is more popular than either Obama or McCain. Also, more people approve of McCain's selection of Palin than approve of Obama's selection of Biden.
And, "Among unaffiliated voters, favorable opinions of McCain have increased by eleven percentage points in a week—from 54% before the Palin announcement to 65% today.".
The choice of Palin seems to have been, so far, an extremely effective move by McCain.
The fact that Palin has more executive experience than Obama and Biden combined seems to be very influential in shaping the public's view of her--as well it should.
I believe that a large majority of Americans support Palin's "all-of-the-above" energy policy: offshore and ANWR drilling, nuclear, solar, geothermal, wind etc. Energy policy is a terrific wedge issue for the Republicans, and they seem to be pouncing on it.
And for bonus points, the wingnut division of the far left beclowned itself yet again, by reflexively spewing a barrage of absurd, personal, and often misogynistic attacks at Palin upon her nomination. These crude bombs exploded close to the source, damaging both the Democrats and the credibility of the MSM and netroots in the process, and strengthening Palin.