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How did dimpled ballots complicate Florida's 2000 presidential vote count?

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U.S. presidential election of 2000 — Bush v. Gore A Florida judge examining a challenged vote at an operations center in Plantation, Florida, during a recount of the state's U.S. presidential election ballots, 2000.

In the 2000 U.S. presidential election, "dimpled" or "pregnant" chads significantly complicated the vote count in Florida because they represented ballots where the voter had made an indentation but failed to completely punch out the circle of paper (the "chad") required for the voting machine to register a vote.1

Because these ballots were not fully pierced, the machines could not read them, forcing election officials to manually examine the cards to discern the voter's intent. This process became a central point of contention during the Florida recount, as officials struggled with the subjective interpretation of these ambiguous ballots alongside "hanging chads" (partially attached paper circles). The resulting inconsistencies in how different counties handled these manual recounts led to legal challenges, ultimately culminating in the U.S. Supreme Court case Bush v. Gore, which halted the recount process and effectively decided the election.12