Could the 2020 US Presidential and US Senate Election be similar to 2008?
In 2008, Democrats win the 2008 US Presidential Election and the 2008 US Senate Election in:
VA(OPEN J. Warner-R)M.Warner-D
NM(OPEN Domenici-R)T.Udall-D
CO(OPEN Allard-R)M.Udall-D
NC(Dole-R vs Hagan-D)
NH(J.Sununu-R vs Shaheen-D)
OR(Smith-R vs Merkley-D)
AK(Stevens-R vs Begich-D)
MN(Coleman-R vs Franken-D).
Democrats won 3 open Republican held US Senate seats and defeated 5 Republican incumbent US Senators in 2008.
2020, Democrats will win the 2020 US Presidential Election and the 2020 US Senate Election in:
CO(Gardner-R vs Hickenlooper-D)
AZ special(McSally-R vs Kelly-D)
NC(Tillis-R vs Cunningham-D)
ME(Collins-R vs Gideon-D)
IA(Ernst-R vs Greenfield-D)
GA special(Loeffler-R vs Tarver-D)
GA regular(Perdue-R vs Tomlinson-D
TX(Cornyn-R vs Hegar-D)
KS(OPEN Roberts-R/Bollier-D)
KY(McConnell-R vs McGrath-D)
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anything is possible. 
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