Chait has an excellent summary of how every alledged advantage has evaporated and every liability has begun to gain more and more traction:

The swift disintegration of Palin's anti-pork credentials has been especially amusing.

After initially casting Palin as a dedicated foe of earmarks, and then having it revealed that she asked for and received enormous sums of earmarked projects, the McCain campaign has fallen back to the defense that she requested fewer earmarks than other Alaska pols. This is true: Even though Palin took ten times the national per capita average in earmarked spending, in this regard she still rates somewhat below average by the standards of the petro-kleptocracy of the state from which she hails. Yet this defense raises the question of why Ted Kennedy never thought to run for president on the slogan "He Never Took a Drink In His Life," and then, when challenged, point out that other members of his family are less sober than he.

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