During an interview on ABC's "Good Morning America," Biden, D-Del., said anyone making more than $250,000 would pay more in taxes if his running mate, Sen. Barack Obama, D-Ill., is elected president.
The Democratic economic platform asks the wealthiest Americans to pay higher taxes -- while pledging tax cuts for the middle class and lower-income Americans -- to pay for healthcare and other initiatives.
"It's time to be patriotic," said Biden. "Time to be part of the deal. Time to help get America out of the rut. And ... they're still going to pay less taxes than they paid under Reagan."
Republicans jumped on Biden's remark. On a campaign stop in Cedar Rapids, Iowa, GOP presidential candidate John McCain said paying more taxes wasn't patriotic but "just plain dumb."
Newt Gingrich fires back at Mandela backlash
Wisconsin business offering 'therapeutic cuddling' forced to close