The Democratic nominee-to-be faces the public at a "green" public school in Wayne, Pennsylvania.
"While Senator McCain has spoken out on energy reform in the past, in this campaign, he isn't offering any solutions to help Americans pay for high gas prices. Instead, he's proposing a gas tax holiday that's nothing more than a Washington stunt."
Q&A topics run the gamut, including retirement, No Child Left Behind, veterans' benefits, Iraq.
On this week's landmark Guantanamo Bay Decision: "John McCain thinks the Supreme Court was wrong; I think the Supreme Court was right."
Criticizes McCain adviser Carly Fiorina, says she claimed on TV that he would not cut taxes for anyone. "She said it right to the screen... It's just kind of frustrating when folks don't tell the truth."
Audience includes Rep. Joe Sestak.
