US Senate seats that Democrats will win in 2020 in order to regain control of the US Senate in 2020.

35 Democratic held US Senate seats are not up for re-election in 2020, US Senators seeking the Democratic Nomination for President cannot be on the Democratic Ticket if their homestate has a Republican Governor. Sanders(VT), Warren(MA), or Brown(OH).
Democratic held US Senate seats up for re-election in 2020 that are likely to stay in the Democratic Column.
36)RI(Reed-D)
37)MA(Markey-D)
38)DE(Coons-D)
39)NJ(Booker-D)
40)OR(Merkley-D)
41)IL(Durbin-D)
42)VA(Warner-D)
43)NM(Lujan-D)
44)MN(Smith-D)
45)NH(Shaheen-D)
46)MI(Peters-D)
Republican held US Senate seats up for re-election in 2020 that are likely to go to the Democratic column.
47)CO(Hickenlooper-D)
48)AZ special(Kelly-D)
49)NC(Cunningham-D)
50)ME(Gideon-D)
51)GA special(Warnock-D)
52)IA(Greenfield-D)
53)GA regular(Tomlinson-D)