2020 US Senate Election Rating.

AL(Jones-D)Lean R 31R
AK(Sullivan-R)Safe R 32R
AZ special(McSally-R)Tilt D 36D Kelly-D
AR(Cotton-R)Safe R 33R
CO(Gardner-R)Lean D 37D Hickenlooper-D
DE(Coons-D)Safe D 38D
GA regular(Perdue-R)Lean R 34R
GA special(OPEN Isakson-R)Lean R 35R
ID(Risch-R)Safe R 36R
IL(Durbin-D)Safe D 39D
IA(Ernst-R)Lean R 37R
KS(OPEN Roberts-R)Likely R 38R
KY(McConnell-R)Likely R 39R
LA(Cassidy-R)Likely R 40R
ME(Collins-R)Tilt R 41R
MA(Markey-D)Safe D 40D
MI(Peters-D)Likely D 41D
MN(Smith-D)Likely D 42D
MS(Hyde Smith-R) Likely R 42R
MT(Daines-R) Likely R 43R
NE(Sasse-R) Safe R 44R
NH(Shaheen-D) Likely D 43D
NJ(Booker-D) Safe D 44D
NM(OPEN Udall-D) Likely-D 45D Lujan-D
NC(Tillis-R) Tilt D 46D Cunningham-D
OK(Inhofe-R) Safe R 45R
OR(Merkley-D) Safe D 47D
RI(Reed-D) Safe D 48D
SC(Graham-R) Safe R 46R
SD(Rounds-R) Safe R 47R
TN(OPEN Alexander-R) Likely R 48R Hagerty-R
TX(Cornyn-R) Likely R 49R
VA(Warner-D) Likely D 49D
WV(Moore Capito-R) Solid R 50R
WY(OPEN Enzi-R) Solid R 51R Lummis-R 51R

In order for Democrats to regain control of the US Senate, Democrats need to win CO,AZ,NC,ME and if Warren(MA) or Sanders(VT) are elected POTUS - GA(Regular and/or Special) or IA.