In person absentee voting has been brisk, with 1,064 city voters and 1,926 county voters casting ballots in their voter registrar's offices, so far.
This means that the election results on election night may not include the final mail-in ballot count because ballots will continue to be accepted 48 hours after the polls close.
The turnout is so unprecedented that researchers are now viewing the election in the same lens as a general election, which tends to draw more voters to the polls.
What's unclear is whether the increased turnout of early voting is representative of an increased turnout overall from 2014 or whether voters who voted in 2014 are just choosing to vote earlier.
According to NBC, the current turnout is looking more like a 2014 electorate than it is a 2016 electorate. Those developments make it easier to cast ballots and are created to boost turnout.
Voters can still request an absentee ballot for the general election by submitting an application directly with the county clerk through today.
The trend also is raising concerns about whether voters can be assured their ballots will count or be notified in time if there is a problem.More news: Packers trade Clinton-Dix & Montgomery
Early voting in Oklahoma runs Thursday through Saturday.
Election officials previously reported a surge in voter registration to record levels.
Republicans accounted for 34 percent. If that held through Election Day, it would be a huge number.
Heard, 57, discovered previous year that she was among roughly 319,000 voters across the country whose absentee ballots were rejected during the last presidential election.
Voters should bring their ID to the polls with them. Members of the Turtle Mountain Band of Chippewa Indians had sued over the requirement, arguing that street addresses aren't always assigned on reservations and the requirements discriminate against Native Americans.
As 6:30 p.m. on Thursday, St. Johns County voters had cast 66,951 ballots either in early voting or through the mail.
- Voters who recently moved to New Hampshire will have to submit additional documentation after the state Supreme Court overturned a lower court's ruling that had placed the requirement on hold.