ANCHORAGE - Four bipartisan review boards began examining questioned ballots Thursday in the Division of Elections' regional offices in Anchorage, Fairbanks, Juneau and Nome, Godkin said.
Four other boards were authenticating absentee ballots that will continue to arrive for several more days and will be counted later.
Under state law, the postelection deadline for absentee ballots to arrive is 10 days for those mailed domestically and 15 days for overseas voters.
Nearly 18,000 absentee ballots were counted Election Day, Godkin said. With a record 58,559 absentee ballots requested, that means potentially more than 40,000 votes remain to be counted.
The southcentral region office in Anchorage, which oversees 20 of the state's 40 polling districts, had 13,192 uncounted absentee ballots in hand Thursday and about 12,000 questioned ballots, said regional elections supervisor Carol Thompson.
Even though scores of ballots remain uncounted, the tightly contested U.S. Senate race is all but officially settled.