Casey at the bat

A big, and surprising, endorsement for Obama in the key Keystone State (where my mom was born and raised), via Marc Ambinder at theatlantic.com, and now the Veep talk with begin for this working-class/anti-abortion hero: "Sen. Bob Casey's endorsement of Barack Obama is obviously a shock to Sen. Clinton's campaign. (I'd note that Obama has picked up a total of three superdelegates since last week, to Clinton's zero). Casey is a freshman Senator; his father, former governor Bob Casey Sr., was so popular among white working class Dems that pundits have named an entire class of voters in his honor: the Casey Democrats who live in the inner suburbs of Pennsylvania's cities, who are wary of liberal social views but very sensitive to economic conditions. Obama begins a six-day bus tour in Pittsburgh today."