This race is going to be very close. I'd like to see Cooney match this margin. I almost want Cooney to win more.
Why? It's still possible one of ME or NC go the GOP's way (I consider it a given that CO and AZ flip to D, while AL goes R). Winning MT seat would give Dems a bigger margin of error in the senate, which will be essential for Biden to get stuff done. IA and the GAs are not certain either. And tbh, I'd feel much more comfortable with 51, 52 or 53 Dem senators instead of a bare 50-50.
I agree Gianforte is horrible while Daines is sort of "ok" for a GOPer, but MT-governorship isn't worth more than a senate seat. It's a small state population-wise and has an R-dominated State Legislature, causing the gov to have a smaller impact. Cooney could only govern by executive action or sign/veto GOP bills. Sure, I'd much rather have Cooney winning than Gianforte, but winning MT-Sen is more important for 2020. In terms of importance, I'd say MT-Sen > MT-Gov > MT-AL.