"I Am Not President Bush"

Obama accuses McCain of voting for four out of five of President Bush's budgets.

McCain pushes back: "Sen. Obama, I am not President Bush. If you wanted to run against President Bush you should've run four years ago." Challenges Obama to cite one time when he's stood up to leaders of his party.

Obama: Said first major vote was for tort reform, not popular with trial lawyers. Supports charter schools, which he said makes him unpopular with teachers' union.

"If I occasionally mistaken your policies for George Bush's policies it's because on the core major issues that matter ot the American people ... you have been a vigorous supporter of President Bush."

Obama says McCain has broken admirably with his party on some issues, torture for example, but that he has supported Bush's economic policies.

McCain: "Sen. Obama your argument for standing up to the leaders of your party isn't very convincing."