Write-in: Shenna Bellows. It's amazing how many people on here seriously think the ACLU spokeswoman can beat Collins when a phenomenal Congressman couldn't even come close to beating her in a Democratic wave.
Among those 3, probably Nunn, and I used to be one of those overly optimistic for Nunn winning, but I see her chances fading. I'm not sure she can find that 50% yet when there's a huge chunk of unregistered Democratic voters and the red to blue transition always talked about has yet to materialize.
Walsh was never given a chance by most people though and still isn't, so he shouldn't be up there. Like Alaska, most polls are pretty bad out of Montana and/or underestimate Democratic chances. Which means if anything, Walsh might be underrated, for now.
What I'm about to say isn't perfect because PPP doesn't poll North Dakota, but I'd say Walsh is more or less in the same position as Heitkamp was at this point in 2012.
Poll
