CO-Keating Research (D primary): Romanoff 23%, Griswold 15%, Johnston 12%

[Gracile]

https://ewscripps.brightspotcdn.com/9a/7a/6537a7474962b3bc748259ef71c9/kr-colorado-senate-dp-voter-poll-july-2019-toplines-final.pdf

Andrew Romanoff 23%
Jena Griswold 15%
Mike Johnston 12%
Alice Madden 2%
John Walsh 2%
Dan Baer 2%

[Amenhotep Bakari-Sellers]

CO leans Dem and Romanoff will likely win

[Mr. Illini]

Interesting, considering Johnston has netted the bulk of the early endorsements in the state

[MT Treasurer]

Gardner losing to a Democrat who’s considered a "weak candidate" by pundits/Atlas/etc. will be poetic justice after how badly the NRSC blew MT-SEN/OH-SEN/WV-SEN 2018 when he was chairman.

[Mr. Smith]

Gardner losing to a Democrat who’s considered a "weak candidate" by pundits/Atlas/etc. will be poetic justice after how badly the NRSC blew MT-SEN/OH-SEN/WV-SEN 2018 when he was chairman.

NV-SEN 2018 is a better comparison point, given that was the only R-incumbent ousted AND by a rather bland candidate at that.

[Zaybay]

With Griswold's likely entry into the race, she likely is pushed up into 1st above Romanoff and Johnston. I doubt that she cleans up her opposition in the primary, but its likely that she will have a Biden-like lead(being above the other candidates by double digits while only being at around 25-30% herself).