New York City is using ranked choice voting in its Democratic mayoral primary election Tuesday, a system that takes some explaining, even for New Yorkers who have used it before.

The last three mayoral elections in New York have been won by a Democratic candidate, meaning whoever wins the primary is likely to become the city’s next mayor.Former Gov. Andrew Cuomo has long held a lead in primary polls,

Track the latest Democratic primary polls, including ranked-choice outcomes, in the New York City mayoral election.