States that currently have US Senators of different political parties.

AL will be 2 R after 2020
AZ will be 2 D after 2020
CO will be 2 D after 2020
ME will be 1I/D 1D after 2020
MT will be 2 R after 2024
OH will be 2 D after 2022 or 2 R after 2024. We need to get rid of Portman in 2022.
PA will be 2 D after 2022
WV will be 2 R after 2024
WI will be 2 D after 2022
States that will have US Senators of different parties.
FL- 2024, Scott-R is an easier target than Rubio-R
GA- 2022 if Republicans win both GA US Senate seats in 2020.
IA- 2020 or 2022.
KS- 2020 if Kobach-R is the R nominee
KY- 2020 if McConnell-R gets Daschleized.
NC- 2020 or 2022
TX 2024