King County Elections had already been predicting a record turnout—68 percent, or 720,000 ballots out of 1.1 million registered voters in the state's biggest (and most Democratic) county.

With massive turnout, the County is now saying turnout will hit 71 percent, or 762,000 ballots. That's huge for an off-year election. King County turnout in the the 2008 presidential election was 84.5 percent, setting the record for a presidential year.

In part, a statement from the elections office released today said:

Elections originally predicted a 68 percent voter turnout in King County, but has already seen a return of over 71 percent. This includes about 57,000 ballots returned on Election Day to ballot drop boxes throughout the county.

“We added over 50,000 votes to our returns report today,” noted Huff. “And we expect to add 65,000 more tomorrow and 65,000 again on Friday.  By the end of the week, we should have counted about 72% of the ballots returned in this election.”