MT(Bullock-D) or IA(Greenfield-D) will be the 51st Democratic US Senate seat on 2020/2021.

[nkpolitics1212]

Democrats are favored to win-
Safe D
1/36)RI(Reed-D)
2/37)MA(Markey/Kennedy-D)
3/38)DE(Coons-D)
4/39)IL(Durbin-D)
5/40)OR(Merkley-D)
6/41)NJ(Booker-D)
Likely D
7/42)NM(Lujan-D)
8/43)VA(Warner-D)
9/44)NH(Shaheen-D)
10/45)MN(Smith-D)
Lean D
11/46)MI(Peters-D)
12/47)CO(Hickenlooper-D)
13/48)AZ special(Kelly-D)
Tilt D
14/49)NC(Cunningham-D)
15/50)ME(Gideon-D)
Democrats could win MT(Bullock-D) due to the 2012 MT US Senate Election results. Democrats won the US Senate Election in MT while losing the US Presidential Election in MT.
Democrats could win IA(Greenfield-D) due to the fact Greenfield(D) has been leading Ernst(R) since winning the primary.

[calguy]

1. How about the 51st AND 52nd?

And then throw in an upset into the mix for 53.

[nkpolitics1212]

2. The 53rd seat is GA regular(Ossoff-D)

Democrats will win every Democratic held US Senate seat up for re-election in 2020 except AL(Jones-D) 46D
Democrats will win at least 5 Republican held US Senate seats up for re-election in 2020.
47)CO(Hickenlooper-D vs Gardner-R) Gardner-R gets Santorumized(PA2006).
48)AZ special(Kelly-D vs McSally-R)
49)NC(Cunningham-D vs Tillis-R)
50)ME(Gideon-D vs Collins-R)
51)MT(Bullock-D vs Daines-R)
52)IA(Greenfield-D vs Ernst-R)
53)GA regular(Ossoff-D vs Perdue-R)