How Democrats can regain control of the US Senate in 2020 after losing 1/3 of a dozen seats in 2018.

2018-Democrats lose IN,MO,MT,ND,OH,and WV but pick up AZ and NV -Democrats will end up with 44 seats after 2018.
2020-Democrats will hold onto every US Senate Seat in sky blue states-MI,MN,NH,and VA and pick up
AK-Begich-D 45
AZ-Stanton-D 46
CO-Hickenlooper-D 47
GA-Barrow-D 48
IA-Vilsack-D 49
MT-Bullock-D 50
NC-Foxx-D 51