I highly doubt there's hard proof Hunter Biden chartered Air Force 2 for his personal business dealings. Of course it's also not illegal for a son to share a bank account with his father or for a father to fly on the same airplane as his son.

Face the facts, President Biden will never be convicted and removed from office by the Senate for anything the right-wing nutters try to throw at him in the House including impeachment. It will only boost Joe's approval ratings, particularly if he's impeached, when he's ultimately acquitted.