FairVote, an organization that promotes electoral reform, has released a dataset tracking the results of U.S. elections that use ranked-choice voting, such as New York City’s recent mayoral primary. Rather than selecting a single candidate, ranked-choice voting allows voters to rank multiple candidates in order of preference. If there is no majority winner, the least-preferred candidate is eliminated and their votes are distributed to the candidates those voters ranked next on the ballot. This process repeats until there is a winner. The dataset consists of election information, ballot counts by tabulation round, and turnout percentages for 398 single-seat elections and 30 multi-seat elections in the United States.
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