Its a sham defence, the Hunter Biden emails evidence a percentage being held for his father, there is reference to meetings with individuals seeking the influence they are paying for. HB also expresses that his father must agree to such deals. These actions denote the work of an agent, JB is the principal, HB is the agent and the willing influence buyers are the third party. They all tie together in a contractual circle. Its a giant racketeering case and Rudi knows how to put all of this together to get the complete picture.