Obama poked fun of McCain and Palin's new "change" mantra.
"You can put lipstick on a pig," he said as the crowd cheered. "It's still a pig."
"You can wrap an old fish in a piece of paper called change. It's still gonna stink."
"We've had enough of the same old thing."
The crowd apparently took the "lipstick" line as a reference to Palin, who described the difference between a hockey mom and a pit bull in a single word: "lipstick."