2020 US Senate Election - Margin of Victory for all US Senate seats up in 2020.

35 Democratic US Senate seats are not up for re-election in 2020.
Democratic Margin of Victory greater than 20 percent.
36)RI(Reed-D)
37)DE(Coons-D)
38)MA(Markey-D)
Democratic Margin of Victory between 15 to 20 percent.
39)NJ(Booker-D)
40)OR(Merkley-D)
41)IL(Durbin-D)
Democratic Margin of Victory between 10 to 15 percent.
42)VA(Warner-D)
43)NM(Lujan-D)
44)MN(Smith-D)
Democratic Margin of Victory between 5 to 10 percent
45)NH(Shaheen-D)
46)MI(Peters-D)
47)CO(Hickenlooper-D)
Democratic Margin of Victory less than 5 percent.
48)AZ special (Kelly-D)
49)NC(Cunningham-D)
50)ME(Gideon-D)
30 Republican US Senate seats are not up for re-election in 2020.
Republican Margin of Victory less than 5 percent.
31)AL(Sessions-R)
32)IA(Ernst-R)
33)GA special(Crittenden-R)
34)GA regular(Perdue-R)
Republican Margin of Victory between 5 to 10 percent.
35)KS(Marshall-R)
36)KY(McConnell-R)
37)TX(Cornyn-R)
38)MS(Hyde Smith-R)
Republican Margin of Victory between 10 to 15 percent.
39)MT(Daines-R)
40)SC(Graham-R)
41)AK(Sullivan-R)
42)LA(Cassidy-R)
Republican Margin of Victory between 15 to 20 percent.
43)NE(Sasse-R)
44)SD(Rounds-R)
45)TN(Hagerty-R)
46)AR(Cotton-R)
Republican Margin of Victory greater than 20 percent.
47)WV(Moore Capito-R)
48)ID(Risch-R)
49)OK(Inhofe-R)
50)WY(Lummis-R)