Counting will start after the polls close at 8 p.m. tonight.By Jennifer Borrasso

PITTSBURGH (KDKA) — It is primary day in Pennsylvania and it is open to all voters, and the polls close in less than two hours at 8 p.m.

Back in November, it took days for Allegheny County to count mail-in and absentee ballots because of the sheer number of ballots. But they have had a lot of practice, and this is the county’s third of scanning ballots.

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Allegheny County elections officials tell KDKA we should know the majority of the results later tonight.

They have already scanned over 88,000 mail-in ballots.

The county began opening them and preparing them for counting at 7 a.m. this morning.

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Allegheny County has the largest number of mail-in ballots in the state.

Now, state law says those results cannot be added up or reported until the polls close at 8 p.m. tonight.

Polls are open until 8 p.m. so you can vote in person, or you can drop off your voted ballot at the county office building in Pittsburgh by 8 p.m.

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You can keep up with the election results as they come in tonight with our primary election results tracker, which you can find here.

Jennifer Borrasso