Some 20,000 Alaskans have participated in early voting, double the number four years ago, according to the state Division of Elections.

Alaska has same-day registration during presidential elections. Voters who missed the Oct. 5 voter registration deadline may still vote for president and vice president. Voters who did not register in time may vote a questioned ballot at any polling place or may vote an absentee ballot at any absentee voting location, according to the elections division.

For more election information, including how to find your polling place, go to the division's Web site. Or call 1-888-383-8683 or 269-8683.

Make adn.com your election base later tonight. We'll have results, photos, video and live blogging from Election Central.

Gov. Sarah Palin is expected to return to Alaska this morning, flying into Anchorage, voting in Wasilla, then flying out to Phoenix for election night.