Although Republican John McCain claims that Obama would raise taxes, the independent Tax Policy Center and other groups conclude that four out of five U.S. households would receive tax cuts under Obama's proposals.
"We want to take money and put it back in the pocket of middle-class people," Biden said in an interview on ABC's "Good Morning America."
Noting that wealthier Americans would indeed pay more, Biden said: "It's time to be patriotic ... time to jump in, time to be part of the deal, time to help get America out of the rut."
McCain released a television ad Thursday charging that Obama would increase the size of the federal government amid an economic crisis. Contending that "a big government casts a big shadow on us all," the ad features the image of a shadow slowly covering a sleeping baby as a narrator misstates the reach of the Obama tax proposal.
"Obama and his liberal congressional allies want a massive government, billions in spending increases, wasteful pork," the ad says. "And we would pay - painful income taxes, skyrocketing taxes on life savings, electricity and home heating oil. Can your family afford that?"
The McCain campaign said the ad is set to run nationally.