The city's Board of Elections will begin tallying thousands of uncounted paper ballots from the primary elections Monday.
As Democratic mayoral candidates Bill de Blasio and Bill Thompson wait for the final results, an estimated 78,491 paper ballots have yet to be counted, a Board of Elections spokeswoman said.
The uncounted votes are critical in the Democratic mayoral primary, where de Blasio teeters on the brink of avoiding a runoff election with Thompson.
As it stands, de Blasio has 40.33 percent and Thompson has 26.3 percent of the vote, with 99 percent of precinct reporting. If de Blasio ultimately has less than 40 percent of the vote, a runoff election will be held Oct. 1.
Thompson said in Harlem Sunday that his campaign is still "waiting to see the count" before making any decisions moving forward.
Of the uncounted votes, there are some 21,000 valid absentee ballots, over 45,000 affidavit ballots and over 10,000 emergency ballots, according to the same estimate.
Affidavit ballots are filled out by voters who use the wrong polling site or can't be found in the poll book. Emergency ballots were issued to voters experiencing problems with the old lever machines.
At over 30,000, Brooklyn has the most uncounted ballots, including the highest amount of affidavit and emergency ballots.
Also on Sunday, Thompson also noted that the Board of Elections is still in the midst of canvassing the voting machines, which will continue through Monday night.
Thompson also rebuked any notions that his support is dwindling, though some former backers have switched to de Blasio.
"There are still a number of people who are telling me to hang in there, who are telling me let's see where the ballots are, who are saying that every ballot should be counted and every voice should be heard," Thompson said.
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