I could care less about Shokin, and declaring he is a 'Russian Asset' trying to affect the 2020 election, especially when the Democrats have been exposed for attempting to affect the 2016 and 2020 elections, is subjective.
What the man claims, however, is easily proven to be TRUE, if only by Biden's videotaped confession. Even YOUR assertion that the man is a Russian agent attempting to affect the 2020 election, instead of a pissed off Ukrainian who was fired because the former VP extorted his Ukraine PM, is highly subjective...unless you have direct evidence to support the claim.
I'm just saying Biden is going to have an extremely hard time defending himself (if it ever gets to that point, which it won't) when Shokin shows Biden's videotaped confession as evidence of his getting fired due to US extortion.