Thats alot of undecideds.
Usually, I'd say "junk poll". In a state like AK, though, that number of undecideds - even at this point - isn't necessarily a deal-breaker.
Everybody should also remember that AK is the only state to swing Democratic in the past three elections (Bush +31, Bush +26, McCain +22, Romney +14). All good things must come to an end, but it's not a stretch based on recent AK swings to see this as a low-to-mid single-digit race. If we see that happen this time, then AK definitely is trending hard toward the Democrats.