2020 US Senate Election- How many ways Democrats can regain control of the US Senate in 2020?

A(Democratic Vice President)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Gideon(D-ME)50D

B(Democratic VIce President)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Smith(D-NC)50D

C(Democratic VIce President)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Tomlinson(D-GA)50D

D(Democratic VIce President)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Greenfield(D-IA)50D

E(Democratic VIce President)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Gideon(D-ME)49D
4)Smith(D-NC)50D

F(Democratic VIce President)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Gideon(D-ME)49D
4)Tomlinson(D-GA)50D

G(Democratic VIce President)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Gideon(D-ME)49D
4)Greenfield(D-IA)50D

H(Democratic VIce President)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Smith(D-NC)49D
4)Tomlinson(D-GA)50D

I(Democratic VIce President)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Smith(D-NC)49D
4)Greenfield(D-IA)50D

J(Democratic VIce President)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Tomlinson(D-GA)49D
4)Greenfield(D-IA)50D

K(Vice President Pence)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Gideon(D-ME)50D
5)Smith(D-NC)51D

L(Vice President Pence)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Gideon(D-ME)50D
5)Tomlinson(D-GA)51D

M(Vice President Pence)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Gideon(D-ME)50D
5)Greenfield(D-IA)51D

N(Vice President Pence)
1)Jones(D-AL) 47D
2)Johnston(D-CO) 48D
3)Kelly(D-AZ)49D
4)Smith(D-NC)5OD
5)Tomlinson(D-GA)51D

O(Vice President Pence)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Smith(D-NC)50D
5)Greenfield(D-IA)51D

P(Vice President Pence)
1)Jones(D-AL)47D
2)Johnston(D-CO)48D
3)Kelly(D-AZ)49D
4)Tomlinson(D-GA)50D
5)Greenfield(D-IA)51D

Q(Vice President Pence)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Gideon(D-ME)49D
4)Smith(D-NC)50D
5)Tomlinson(D-GA)51D

R(Vice President Pence)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Gideon(D-ME)49D
4)Smith(D-NC)50D
5)Greenfield(D-IA)51D

S(Vice President Pence)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Gideon(D-ME)49D
4)Tomlinson(D-GA)50D
5)Greenfield(D-IA)51D

T(VIce President Pence)
1)Johnston(D-CO)47D
2)Kelly(D-AZ)48D
3)Smith(D-NC)49D
4)Tomlinson(D-GA)50D
5)Greenfield(D-IA)51D