Stephan:   I am a year older than Joe Biden, although I am told I look much younger -- which is always nice to hear :-) -- but I make this observation, not about how we look but because I have a sense of how a man of his age thinks, particularly one who has suffered such loss. I too lost a life partner of many years, and was lucky enough, like Biden, to find a second life partner. It leaves one with few illusions about permanence. I have also met Biden several times, and for decades have listened to his speeches, and observed the kind of legislation he supports. He is not just intelligent, he has a sense of history, and understands the shaping of policies and what they can and cannot do. He lived through and was a major player in saving America once before from the previous Republican debacle when the Bush administration left the country in the pits. He knows what it takes to put the wheels back on the train. Finally, and most importantly, Biden recognizes not just the reality of climate change, he also acknowledges what it will do.  Finally, I don't think he believes he is going to be a two-term president; he would be in his eighties when he ran again.  That is why I think he made deals with Sanders, Warren, and the other progressives, and why they support him with enthusiasm. If enough of us vote to produce a landslide that gets the Trumpian mafia out of Washington, I think Biden has the vision to really make America great again.