The guy told Wolf Blitzer in an interview on CNN that he would have done what Donald Trump Jr did-talk with the Russian lawyer to get dirt on his political opponent.

Polis's likely successor in CO-2nd CD US House Seat-Joe Neguse-D could be the candidate for the 2020 US Senate Race against Gardner.
Hickenlooper and Perlmutter are going to be in their late 60's in 2020, while Neguse-D will be in his late 30's in 2020. Neguse previously ran for statewide office in 2014-Secretary of State-narrowly lost that race in the November General Election. 2014 was also a bad year for Democrats in CO-Udall lost and nationally. Neguse is also the Barack Obama of Colorado-son of African immigrants-he'd be the first African American US Senator from CO. If there was a contested Democratic primary for the 2020 US Senate Race between Neguse and 7th CD US Representative Andy Kerr-Neguse would be favored to win.

This polls has McCaskill-D trailing Eric Schmitt by 4 (45-49),Blaine Luetkemeyer by 7 (43-50),Vicky Hartzler by 4 (44-48) and Jason Smith by 3 (45-48)
McCaskill-MO,Donnelly-IN,and Brown-OH are the 3 Democratic incumbents up for re-election in 2018 that are in danger of losing.
I expect Heitkamp-ND,Tester-MT,Manchin-WV,Baldwin-WI,and Nelson-FL to win re-election.

he will not seek re-election to his 7th CD US House Seat.
This means Polis-D is the Democratic front runner in 2018 CO Governors Race and is likely to be the next Governor of CO.
Is Perlmutter-D done with elected politics or will he run for the US Senate in 2020 against Gardner-R?
Perlmutter is the Democrats 2nd choice for the 2020 CO US Senate Race after Hickenlooper.

2ND CD US Representative Steve Pearce (R-NM) has jumped into the 2018 NM Governors Race yesterday. Pearce ran for statewide office a decade ago. He ran for the US Senate in 2008 to replace fellow Republican Pete Domenici and lost to Democratic opponent Tom Udall by a 22 percent margin. A Democrat by the name of Harry Teague was able to win NM-2CD in 2008. Any chance Teague may run again?

Democrats hold onto
RI (Reed-D)
MA (Markey-D)
OR (Merkley-D)
IL (Durbin-D)
NJ (Booker-D)
DE (Coons-D)
NM (Udall-D)
MN (Franken-D)
MI (Peters-D)
VA (Warner-D)
NH (Shaheen-D)
Democrats pick up
CO (Michael Hancock-D)
GA (Kasim Reed-D)
NC (Anthony Foxx-D)

The last 2 PPD polls in the 2018 Ohio US Senate Race has Brown-D trailing Mandel-R by 5 and 8 point margin.
The only poll that has Brown-D leading Mandel-R is PPP-Public Policy Polling. The recent PPP polls which was last released in July 2016 had Brown-D leading Mandel-R by a 9 point margin.
Is Brown-D the most vulnerable Democratic US Senator up for re-election in 2018? or Is the Brown-D vs Mandel-R rematch in OH 2018 the opposite version of Johnson-R vs Feingold-D rematch in WI 2016?

Solid Democratic-unopposed or against a fellow Democrat in the November General Election.
1)HI-Hirono-D 24
2)VT-Sanders-I/D 25
3)MN-Klobuchar-D 26
4)WA-Cantwell-D 27
5)CA-Feinstein-D 28
Solid Democratic-sacrificial lamb Republican challengers
6)NY-Gillibrand-D 29
7)RI-Whitehouse-D 30
8)CT-Murphy-D 31
9)MA-Warren-D 32
10)ME-King-I/D 33
11)NJ-Pallone-D 34 wins the 2017/2018 special election
Solid Democratic-open seat-top tier Democrat vs sacrificial lamb Republican challengers
12)MD-(Open-Cardin-D)Sarbanes-D 35
13)DE-(Open-Carper-D)Markell-D 36
Likely Democratic
14)NM-Heinrich-D 37
15)VA-Kaine-D 38
16)MI-Stabenow-D 39
17)PA-Casey-D 40
18)WI-Baldwin-D 41
19)FL-Scott-D 42
Lean Democratic
20)WV-Manchin-D 43
21)ND-Heitkamp-D 44
22)MT-Tester-D 45
23)OH-Brown-D 46
24)MO-McCaskill-D 47
25)IN-Donnelly-D 48
Slight Lean Democratic
26)NV-(Heller-R)Rosen-D 49
27)AZ-(Flake-R)Stanton-D 50
The 51st seat take place in 2020
In 2020 Democrats hold onto RI,DE,MA,IL,OR,NJ,MI,MN,NH,and VA and pick up at least CO.
The Democratic Nominee for the 2020 CO US Senate Race is going to either Hickenlooper-D, 2nd place finisher in the 2018 Democratic Primary for Governor (Kennedy-D or Perlmutter-D), the winner in CO-7CD (Kerr-D) or winner in CO-2CD (Neguse-D)

1)CA-Newsom-D
2)CO-Polis-D
3)CT-Lembo-D
4)DE-Carney-D
5)FL-Graham-D
6)HI-Ige-D
7)IL-Pritzker-D
8)LA-Bel Edwards-D
9)MI-Whitmer-D
10)MN-Walz-D
11)MT-Bullock-D
12)NV-Miller-D
13)NJ-Murphy-D
14)NM-Lujan Grisham-D
15)NY-Cuomo-D
16)NC-Cooper-D
17)OH-Sutton-D
18)OR-Brown-D
19)PA-Wolf-D
20)RI-Raimindo-D
21)VA-Northam-D
22)WA-Inslee-D
23)WV-Justice-D