Scott McAdams (D): 39
Joe Miller (R): 47
Undecided: 14
Scott McAdams (D): 22
Joe Miller (R): 38
Lisa Murkowski (L-inc): 34
Undecided: 6
Scott McAdams (D): 28
Lisa Murkowski (R-inc): 60
Undecided: 12
(MoE: ±2.7%)
Folks, we have ourselves a race here! In a head-to-head matchup against Miller, McAdams trails Miller by only 8 points -- that's about the best poll we've seen for a Alaska Democrat this cycle. McAdams holds 81% of Democrats (to Miller's 73% of Republicans) and splits independents down the middle with Miller at 42% apiece. And that's before most Alaskans are acquainted with McAdams! Joe Miller has a favorable rating that's already underwater at 36-52, while McAdams is at 23-24, with 53% claiming "not sure".
The poll also solidifies that this race would be dead in the water with Murkowski as the Republican nominee. Murkowski has stronger favorables among liberals than she does conservatives, and has a higher approval rating among Dems (52-41) than Republicans (47-47). In a three-way race as a Libertarian, Murkowski would take a plurality of independents (38%), a significant chunk of Democrats (28%) and nearly a third of Republicans (32%). As Tom Jensen notes, Democrats should actually be hoping that Murkowski does not pull the Libertarian trigger, as her supporters align behind McAdams by a 47-23 margin in a two-way race against Miller.
Of course, the dynamics of three-way races are always unpredictable, and as we're seeing in Florida right now with Charlie Crist's difficulties, they can present difficult needles to thread for the outsider candidate. However, for the time being, it would appear that Democrats should be hoping that Murkowski loses the final count -- and that this stays as a two-way race.