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They're still counting votes in Arizona - and it sounds like the results won't be finalized for several more days.
Election officials in Maricopa County say the count likely won't be finished until "early next week", due to delays in counting 290,000 mail-in ballots that were dropped off on Election Day.
Counting mail-in ballots takes extra time because each ballot must be 'signature-verified' by comparing it to the signature on file for each voter.
Democratic Sen. Mark Kelly currently holds a 95,000-vote lead over Republican Blake Masters for a crucial Senate seat.