Juneau, Alaska (CNN) - Observers who are following the drama in the nation's last, undecided Senate battle may want to re-arrange their weekend plans.
An official tells CNN that Alaska's write-in ballot count, that began on Wednesday, could stretch into the weekend. Officials had previously thought it could be wrapped up on Friday.
"At this point, the progress that we've made so far – through today - we still have to go thru all 40 districts," said Shelly Growden, Election Systems Manager for Alaska's Division of Elections.
Growden added, "At the end of today we'll be able to re-gauge. But we might go into Saturday."
When asked if the counting of just over 92,000 write-in ballots could even stretch to Sunday, Growden said, "Possibly."
The write-in vote count is aimed at resolving the race between Republican Sen. Lisa Murkowski and opponent, Joe Miller. Miller defeated Murkowski for the Senate nomination in the state's GOP primary in August. But in September, after initially conceding the race, Murkowski announced she'd run as a write-in candidate.
The air over Wednesday's count of the write-in ballots hung with suspense after the Miller campaign filed a federal lawsuit to try and stop certain ballots from being counted.
Currently, Miller trails write-in ballots by just over 11,000 votes.
Representatives for the Murkowski and Miller campaigns are keeping close watch over election workers as they evaluate ballots and try to determine "voter intent." Rules issued by the Division of Elections say that ballots that are not perfectly filled out, but show a voter's clear intent to support one candidate, may be allowed.
Lawyer Joe Geldhof, an observer for the Murkowski campaign, sees promise for the senator – and possible electoral doom for Miller.
"The trends in the district I've been watching are…there aren't enough challenges to even mount a comeback here," Geldhof told CNN, referring to Miller's chances of success. "And even where there are challenges, the ratios are running three-quarters against throwing the ballots out. Because they're minor misspellings of Lisa Murkowski's name."
But A.J. Ferate, an observer for Miller's campaign, said that discerning a voter's intent has proven to be tricky.
"We're seeing all sorts of different ways that people vote…you can't read somebody's mind when you're standing here," Ferate told CNN.
"There's a lot to review here and a lot to challenge and we'll see how it comes out."