The 2020 Democratic presidential primary features the largest field of candidates in modern electoral history. Size of the presidential primary field, relative to the date of the Iowa caucuses 100 days before Iowa 1976 Dem. 1996 Rep. 360 300 240 180 120 60 60 120 180 Days before Days after Size of the presidential primary field, relative to the date of the Iowa caucuses 100 days before Iowa 1976 Dem. 1996 Rep. 360 300 240 180 120 60 60 120 180 Days before Days after Size of the presidential primary field, relative to the date of the Iowa caucuses 100 days before Iowa 1976 Dem. 1996 Rep. 360 300 240 180 120 60 60 120 180 Days before Days after Size of the presidential primary field, relative to the date of the Iowa caucuses 100 days before Iowa 1976 Dem.

Source: Wall Street Journal October 24, 2019 12:45 UTC