Unfortunately for the Trump base and the divergent part of the Republican party without a viable replacement, what you just vividly displayed about Joe Biden with that video clip is EXACTLY what Hillary lacked and why she did not win. Likability and someone that people can relate to. Even stumbling for the right words through the 40 years of facts and figures in his mind, Joe does it in a way everybody sees is genuine like all the other older people in our lives. Doesn't mean he won't eventually get there, its just hard on the spot 24 hours a day.
Its night and day compared to Trump. Trump has no foundation of actual knowledge to even draw from in the first place. He starts out bat shit crazy, goes off script and then leaves everyone wondering how in the actual F he got elected. Joe tells a good story. For a stutterer he does a damn good job of leaving something to walk away with that we don't have to lose sleep over parsing minutes, days, months later.