(CNN) - Barack Obama accidentally introduced his running mate Joe Biden as the next president of the United States Saturday, a slip-of-the-tongue the McCain campaign is calling "Freudian."
“Barack Obama sounded as though he turned over the top spot on the ticket today to his new mentor, when he introduced Joe Biden as the next president," McCain campaign spokesman Ben Porritt said. "The reality is that nothing has changed since Joe Biden first made his assessment that Barack Obama is not ready to lead. He wasn’t ready then and he isn’t ready now.”
Another McCain aide told CNN Obama "slipped with the truth that his own experience is too underwhelming to be president."
The slip-up came earlier Saturday as the Illinois senator introduced Joe Biden for the first time as his vice presidential candidate, saying "The next president," before quickly correcting.