[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/10/02/art.biden.cheney.gi.jpg caption="Biden attacks Cheney."]
ST. LOUIS, Missouri (CNN) – Sen. Joe Biden called current Vice President Dick Cheney "one of the most dangerous vice presidents."
Biden said he will serve a different role than Cheney if Barack Obama was elected president.
"I would not be the president," said Biden. "But I would be there to give advice."