[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/11/13/art.begichwave1113.ap.jpg caption="Anchorage Mayor Mark Begich has taken the lead over Sen. Ted Stevens as votes continue to be counted in Alaska's senate race."]
(CNN) - Republican Sen. Ted Stevens has fallen 814 votes behind Democratic challenger Mark Begich as vote counting continues in Alaska.
The Anchorage mayor was trailing Stevens in the initial count, which did not include at least 90,000 absentee, early and provisional ballots.
With nearly two-thirds of those votes now tallied, Begich has taken the lead. An estimated 40,000 ballots have yet to be counted – a majority of them from the area of the state that includes Anchorage, according to state elections officials.