 really closely with jeff mason white house correspondent for reuters so jeff let me i know you wrote an article on this so i want you to play professor as i know you are at georgetown for a minute if joe biden decides i'm not going to run again what is the process for replacing him because i get asked that question a lot and i think you did a wonderful write-up on it but i want you to play georgetown professor for me we're a bunch of freshmen in the class what happens