Howard Dean: Hillary Clinton email scandal part of Republican 'witch hunt' against her

Dean said having the server in the hands of an impartial source will help clear Clinton of any perceived wrongdoing.

"It's going to show there was no criminality, that there was nothing she sent that was identified as classified or top secret, that this in fact is nothing but a partisan witch hunt," he said. "That's what it is. I think it's too bad but I think we'll get through it."

Clinton's campaign has insisted she did not send any classified information through her personal account.