Putin leverage on Biden?

How can Putin use what's already on audio that everyone that pays attention to and knows about count as blackmail?

Obviously audio isn't enough. There are records that we don't have access to... yet.

There is a video of Joe talking about it too.

Yep. Everyone saw it, and it didn't make a difference. Nobody cares about evidence on Hunter either obviously. Gotta have documented evidence on Joe Himself.