The New York City Board of Elections apologized late Tuesday after election officials removed the latest vote tally for the Democratic mayoral primary from its website following a data error.

Why it matters: New York City’s first election using a ranked choice voting system was thrown into disarray when 135,000 test ballots were counted along with the actual ballots, resulting in front-runner Eric Adams’ significant lead being cut.

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  • The error appeared to “confirm worries” that the board that’s run by Republicans and Democrats “was unprepared to implement the new system,” per AP.

Driving the news: Preliminary results posted Tuesday indicated that Brooklyn Borough President Eric Adams had a narrow lead over former sanitation commissioner Kathryn Garcia.

  • The board tweeted Tuesday evening that there had been a “discrepancy,” without elaborating on the cause of the problem, and it withdrew the earlier tally from its website.
  • The BOE said in its later statement explaining the test ballots error that it had “taken immediate measures to ensure the most accurate up to date