2020 US Senate Election- Seats that will give Democrats the majority in the US Senate in 2020.

Democrats have to defend 12 seats-
AL(Jones-D)
DE(Coons-D)
IL(Durbin-D)
MA(Markey-D)
MI(Peters-D)
MN(Smith-D)
NH(Shaheen-D)
NJ(Booker-D)
NM(Udall-D)
OR(Merkley-D)
RI(Reed-D)
VA(Warner-D)
Democrats will hold onto every Democratic held US Senate seat up in 2020 but AL. -1D 46D
Democrats need to win at least 4 Republican held seats plus the 2020 US Presidential Election, 5 Republican held seats if Brown(D-OH) is on the 2020 Democratic Ticket- meaning Democrats will win the 2020 US Presidential Election, Brown-D gives up his OH US Senate seat which will go Republican due to OH having a Republican Governor- DeWine-R.
The 5 Republican held US Senate seats Democrats are likely to win in 2020 is:
CO(Gardner-R) loses to the likely Democratic nominee. +1D 47D
AZ(McSally-R) loses to the likely Democratic nominee +1D 48D
ME(Collins-R) loses to the likely Democratic nominee +1D 49D
NC(Tillis-R) loses to the likely Democratic nominee +1D 50D
Brown(D-OH) becomes POTUS or VP. -1D 49D
IA(Ernst-R) loses to the likely Democratic nominee +1D 50D