Apparently, he doesn't like to use a Teleprompter.

"Biden also praised Tim Kaine as the "great governor of New Jersey."
One problem: Tim Kaine's not governor of New Jersey.

Jon Corzine is governor of New Jersey (Remember, he didn't wear his
seatbelt in the state patrol car for the big high-speed crash).

Tim Kaine is governor of another state, called Virginia.

He's also chairman of the Democratic National Committee."

Another gaffe brought to you by Joe "The Sheriff" Biden - the
Democrats very own Dan Quayle.