Biden would be 74 y/o when inaugurated if he won.
Hillary Diane Rodham Clinton (born October 26, 1947)
Hillary would be a comparatively young 69, but those have been rough, bitter years.
Bernard "Bernie" Sanders (born September 8, 1941)
Bernie would be 75 y/o.
The socialist party doesn't have any young blood, just these hangers on from the 60s and before.
Speaking of Jumpin' Joe, might be a good time to re-read that Richard Ben Cramer book about the 1988 campaign ("What It Takes"). That was a very good read. The writing style reminded me of Tom Wolfe. Lot of stuff about the younger Biden in there. Something about buying a house he couldn't afford. That was the year Biden had to drop out of the race due to being caught plagiarizing speeches.