Democrats worry their presidential frontrunners are too old for 2020

BRIDGETON, Mo. — Former Vice President Joe Biden was a crowd pleaser at a St. Louis County union hall during a rally for Sen. Claire McCaskill, D-Mo., Wednesday night, but even his most ardent supporters are divided on whether Democratic leaders his age represent the future of the party.

Many of the current top-tier 2020 Democratic presidential hopefuls would be in their 70s if elected to the White House in two years. Biden would be 77, Sen. Elizabeth Warren, D-Mass., 71, and Sen. Bernie Sanders, a Vermont independent who caucuses with Democrats and sought the party’s presidential nomination in 2016, 79.