Please go and watch many of the videos out there that show Biden's mind failing. He forgets words, he forgets people's names, he, the President of the United States has said many times: "I am not supposed to talk to you' or "They have told me not to talk to you", and he cannot function without note cards. I mean really, he has handlers dressed as bunny rabbits corralling him away from speaking to the press.
I'm sorry, but at 65 most of my friends in my retirement park are in their late 70's or in their 80's and most of them are mentally not up to speed either. Mr. Biden is in the same boat as they are, and the last position he should be in is as the leader of one of the most powerful countries in the world.