Subject: Re: Hunter Biden Reaches Plea Agreement
Selling access to a public official is bad. It is corrosive to the integrity of public institutions, and ethically unsound. However, it's almost certainly not criminal. Back in the *McDonnell* case in 2016, SCOTUS held (unanimously) that even when the person selling the access is themselves an elected official, it's not a crime:

Depends who you, evidently.
They could have nailed him with FARA, but *chose* not to.