September 23, 2019
Democratic Wisconsin Gov. Tony Evers has set January 27, 2020 as the date for a special election to fill the vacancy in the state's 7th congressional district. The seat became vacant when GOP Rep. Sean Duffy resigned, effective September 23.
The U.S. House now has 235 Democrats, 198 Republicans and 1 independent, in addition to the aforementioned vacancy.
Candidates that earn any pledged delegates in Iowa will make the stage, with an alternate polling and donor path also available.
Vermont to follow Saturday; both states hold their primaries on Super Tuesday, March 3
While the nominee will be someone else, the seat being vacated by the retiring Sen. Mike Enzi is safely Republican.
The New Jersey Senator had been polling 2-3% nationally; missed the cut for Tuesday's debate
9th in our series: Idaho last voted Democratic in a presidential election back in 1964. Little reason to think that will change in 2020