Pennsylvania’s Democratic Senator and superdelegate announces his endorsement of the Illinois Senator at a Pittsburgh rally. Watch video above.
Casey has big following among — and symbolic resonance with — the state’s working-class voters.
Will join part of Obama’s six-day Pennsylvania bus tour. Had originally said he would remain neutral until after his state’s April 22 primary.
Obama campaign’s Friday surrogate talking points: “Working families in Pennsylvania have few stronger advocates than Senator Casey.”
To read the talking points (which also hit McCain and talk about Obama’s economic agenda), click here.