Thread by @TheValuesVoter

Here's a list of the first-term Senate Republicans who are up for election in 2020 and who were preceded in office by Democrats:

- Gardner (CO)
- Tillis (NC)
- Ernst (IA)
- Sullivan (AK)
- Cassidy (LA)
- Daines (MT)
- Cotton (AR)
- Rounds (SD)
- Capito (WV)

The Senate Republicans up for election in 2020 who either barely won their seats last time or weren't elected at all:

- Gardner (CO, 1.90%)
- McSally, (AZ, unelected)
- Tillis (NC, 1.50%)
- Sullivan (AK, 2.20%)
- Loeffler (GA, unelected)

The Senate Republicans up for election in 2020 who are from states in which the other Senate seat is held by a non-Republican:

- Gardner (CO)
- Collins (ME)
- McSally (AZ)
- Daines (MT)
- Capito (WV)

The Senate Republicans up for election in 2020 who are from states which have a Democratic Governor:

- Gardner (CO)
- Collins (ME)
- Tillis (NC)
- Cassidy (LA)
- Daines (MT)
- OPEN (KS)
- McConnell (KY)

The Senate Republicans up for election in 2020 who are from states where, according to Civiqs, at least as many people support impeachment as oppose it:

- McSally (AZ, +2%)
- Gardner (CO, +13%)
- Ernst (IA, +2%)
- Collins (ME, +24%)

The Senate Republicans up for election in 2020 who are from states where, according to Morning Consult, at least as many people disapprove of Trump as approve of him:

- Sullivan (AK, -2)
- McSally (AZ, -3)
- Gardner (CO, -18)
- Perdue (GA, -2)
- Loeffler (GA, -2)

Senate Republicans up for election in 2020 who are from states where, according to Morning Consult, at least as many people disapprove of Trump as approve of him (cont):

- Ernst (IA, -9)
- Collins (ME, -6)
- Tillis (NC, +0)
- Cornyn (TX, +0)

Senate Republicans up for election in 2020 who represent states in which Democrats took House seats from Republicans in 2018:

- McSally (AZ)
- Gardner (CO)
- Perdue (GA)
- Loeffler (GA)
- Ernst (IA)
- OPEN (KS)
- Inhofe (OK)
- Graham (SC)
- Cornyn (TX)

Senate Republicans up for election in 2020 who represent states where there is an incumbent Republican Governor who has a net approval rating of zero or worse according to Morning Consult:

- Sullivan (AK, +0%)
- Rounds (SD, -2%)
- Capito (WV, -1%)

Senate Republicans up for election in 2020 from states where there is an incumbent Democratic Governor who has a net approval rating of 10 or more according to Morning Consult:

- Gardner (CO, +12%)
- OPEN (KS, +26%)
- Cassidy (LA, +19%)
- Daines (MT, +21%)
- Tillis (NC, +15%)

There are two Senate elections in which the Democratic candidate is either ahead or not that far behind the incumbent Republican in terms of Cash on Hand:

Kelly (against McSally, AZ) - nearly twice as much.
McGrath (against McConnell, KY) - 80% of his current Cash on Hand.

Also not doing terribly in terms of relative cash:
Harrison (against Graham, SC)
Greenfield (against Ernst, IA)
Hickenlooper (against Gardner, CO)

If anyone wants to see Mitch McConnell go into a full-blown panic, convince @GovernorBullock to run for the Montana Senate.