Biden said (about pandemic response) that he will listen to everything the doctors say. He also said that he is tested often for cognitive decline. I sure hope it's not the same doctors who will advise him and who can't tell the difference between a fit mind and a bumbling senile one.
Compare a video of Biden 10 years ago with the video from yesterday. If you don't think hes had any cognitive decline, you are not being honest with yourself.
(cc @MarkCuban)