Democratic and Republican held US Senate seats up for re-election in 2020- most to least vulnerable.
35 Democratic held US Senate seats are not up for re-election in 2020.
1)AL(Jones-D) Sessions-R/Lean R
2)MI(Peters-D) Peters-D/Lean D
3)MN(Smith-D) Smith-D/Likely D
4)NH(Shaheen-D) Shaheen-D/Likely D
5)NM(OPEN Udall-D) Lujan-D/Likely-D
6)VA(Warner-D) Warner-D/Safe D
7)IL(Durbin-D) Durbin-D/Safe D
8)OR(Merkley-D) Merkley-D/Safe D
9)DE(Coons-D) Coons-D/Safe D
10)NJ(Booker-D) Booker-D/Safe D
11)MA(Markey-D) Markey-D/Safe-D
12)RI(Reed-D) Reed-D/Safe D
30 Republican held US Senate seats are not up for re-election in 2020.
1)CO(Gardner-R) Hickenlooper-D/Lean D
2)AZ special(McSally-R) Kelly-D/Tilt D
3)NC(Tillis-R) Cunningham-D/Tilt D
4)ME(Collins-R)Tossup
5)IA(Ernst-R)Ernst-R/Tilt R
6)GA regular(Perdue-R)Perdue-R/TiltR
7)GA special(Loeffler-R)Loeffler-R/Lean R
8)TX(Cornyn-R)Cornyn-R/Lean R
9)KS(OPEN Roberts-R)Pompeo-R/Likely R
10)KY(McConnell-R)McConnell-R/Likely R
11)MS(Hyde Smith-R)Hyde Smith-R/Likely R
12)MT(Daines-R)Daines-R/Likely R
13)AK(Sullivan-R)Sullivan-R/Safe R
14)SC(Graham-R)Graham-R/Safe R
15)TN(OPEN Alexander-R)Hagerty-R/Safe R
16)WY(OPEN Enzi-R)Lummis-R/Safe R
17)WV(Moore- Capito-R) Moore- Capito-R/Safe R
18)SD(Rounds-R)Rounds-R/Safe R
19)OK(Inhofe-R)Inhofe-R/Safe R
20)NE(Sasse-R)Sasse-R/Safe R
21)LA(Cassidy-R)Cassidy-R/Safe R
22)ID(Risch-R)Risch-R/Safe R
23)AR(Cotton-R) Cotton-R/Safe R