Booker is the only one of these three with a fully fleshed-out-proposal out there. His plan, unveiled late in April, would create pilot job guarantee programs in 15 communities where unemployment is particularly high.

All of the jobs would give people paid family and sick leave, pay that eventually phases up to $15 an hour, and — according to Booker’s website — “health coverage like that enjoyed by Members of Congress.”

Democratic senators Kirsten Gillibrand, Kamala Harris, Jeff Merkley and Elizabeth Warren all co-sponsored that bill. (And like Gillibrand, Harris, Merkley and Warren likewise have hinted at possible 2020 campaigns.)

Bernie Sanders also has a proposal in the works.