Joe Biden: born November 20, 1942 - He'll turn 78 right after the election.
Bernie Sanders was born September 8, 1941
Hillary Clinton was born October 26, 1947
Lizzie Fauxcahontas: June 22, 1949 - so she'd be the youngster at age 71 on Election Day.
We have to worry if they run Booker (age 51 in 2020) or Harris (age 55 in 2020), or just about anyone else not using a walker and on Medicare.