I like Bernie and I wish he'd won the nomination and the election, but he did not, and he's getting a bit old to run. He remains a popular and influential figure, though, and what I wish now is that he would think over the options, withdraw from the race itself, and become a vociferous spokesperson for whoever is nominated - preferably someone whose politics he can honestly stand behind, and preferably someone a good bit younger, who can symbolize the empowerment of younger politicians.
Of course what really will happen is probably not that. It would not be the first time that a basically good sort got carried away by the promise of influence and blew the whole thing.
I'm reminded of the debacle years ago in Connecticut, where Toby Moffett, a very likeable, liberal congressman who, despite being in a conservative district had a lock on re-election because he was popular and effective, decided to run for Senate against the also very popular maverick Republican Lowell Weicker. Weicker mopped the floor with him, and a man who could, with patience, have become a real voice in national politics ended up being a small-beans radio commentator, gadfly, and serially unsuccessful candidate.