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.