certainly could be said for donald trump going into 2020 as well. josh, we talked about joe biden, at an event with him a week ago and this was him again still taking the train home here from new york city. this case not from washington, d.c. at 11:00 p.m. after had five-hour day just talking about the moon shot. the issue of cancer. the issue of him still wanting to make a difference and if that energy and passion translates to 2020 seems that would satisfy the criterion liz brought up. again, having the energy, understanding the pace and maintaining the passion in case wanting to be the next president of the united states. it s true running tore president is possibly the most grueling thing you can do and i will say hillary clinton ran laps around her staff significantly younger than her. i have no doubt if joe biden decides to do it he will take into the account he is healthy for his age and can do it. nothing i ve seen makes me think anything else.