Biden's new role: Cheerleading, not policy

'He's had the occasional gaffe but he's stayed very much behind the scenes -- in the tomb of the unknown vice president,' said Cindy Rugeley, a political scientist at Texas Tech University. 'He seems very loyal to the president.'

"He's had the occasional gaffe but he's stayed very much behind the scenes -- in the tomb of the unknown vice president," said Cindy Rugeley, a political scientist at Texas Tech University. "He seems very loyal to the president."

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