2018 and 2020 US Senate Election can be the opposite of the 1978 and 1980 US Senate Election.

[nkpolitics1212]

1978- Carter's-D midterm
Republicans had a net gain of 3 seats.
Republicans picked up
CO(Haskell-D) Armstrong-R
IA(Clark-D) Jepsen-R
ME(Hathaway-D) Cohen-D
MN regular(Anderson-D) Boschwitz-R
MN special(OPEN Humphrey-D) Durenberger-R
MS(OPEN Eastland-D) Cochran-R
NH(McIntyre-D) Humphrey-R
SD(OPEN Abourzek-D) Pressler-R
Republicans lost
MA(Brooke-R) Tsongas-D
MI(Griffin-R) Levin-D
NE(OPEN Curtis-R) Exon-D
NJ(OPEN Case-R) Bradley-D
OK(OPEN Bartlett-R) Boren-D
1980- Republican Revolution
Republicans had a net gain of 12 seats
AL(OPEN Stewart-D) Denton-R
AK(OPEN Gravel-D) Murkowski-R
FL(OPEN Stone-D) Hawkins-R
GA(Tamaladge-D) Mattingly-R
ID(Church-D) Symms-R
IN(Bayh-D) Quayle-R
IA(Culver-D) Grassley-R
NH(Durkin-D) Rudman-R
NC(Morgan-D) East-R
SD(McGovern-D) Abdnor-R
WA(Magnumson-D) Gorton-R
WI(Nelson-D) Kasten-R
2018 Trump's-R midterm
Democrats will pick up
AZ(OPEN-Flake-R) Sinema-D
NV(Heller-R) Rosen-D
TN(OPEN Corker-R) Bredesen-D
TX(Cruz-R) O'Rourke-D
+4D
2020
Democrats will pick up
AK(Sullivan-R) Berkowitz-D
AZ special(OPEN Kyl-R) Gallego-D
CO(Gardner-R) Duran-D
GA(Perdue-R) Tomlinson-D
IA(Ernst-R) Finkenauer-D
KY(McConnell-R) McGrath-D
LA(Cassidy-R) Mitch Landrieu-D
ME(Collins-R) Hannah Pingree-D
MS(Hyde Smith-R) Presley-D
MT(Daines-R) Bullock-D
NC(Tillis-R) Foxx-D
+11D

[SCantiGOP]

1. You promise?

This is a very optimistic forecast, but it could happen if a majority hates and fears Trump half as much as I do.