This is what Woodward said on a recent appearance on MSNBC:
"Follow the trail here," Woodward said. "There are all these emails. Well, they were sent to someone or someone sent them to her. So, if things have been erased here, there's a way to go back to these emails or who received them from Hillary Clinton. So, you've got a massive amount of data in a way, reminds me of the Nixon tapes: Thousands of hours of secretly recorded conversations that Nixon thought were exclusively his."Bob Woodward: Clinton emails 'reminds me of the Nixon tapes'