[US Democratic primaries: Number of states, including DC, not won by Biden, Buttigieg, Sanders, Warren, or Yang to be] 21 to 30

Created by Cato on 2019-11-22; known on 2020-08-21; judged wrong by Cato on 2020-05-18.

• Cato estimated 0% on 2019-11-22
• pranomostro estimated 0% on 2019-12-02
• Bruno Parga estimated 0% on 2020-01-04
• peter_hurford estimated 0% on 2020-01-15
• Cato   judged this prediction wrong on 2020-05-18.
• Cato changed the deadline from “on 2020-06-02” on 2020-05-28