Buffalo mayor Byron Brown, seeking an unprecedented fifth term in office, was defeated in Tuesday's Democratic primary. India Walton, a first time candidate challenging Brown from the far left, led Brown by about 7% as of Wednesday afternoon. While absentee ballots remain to be counted, the race has been called by both Decision Desk and the Associated Press. Decision Desk provides election results to 270toWin. Brown has not yet conceded.

With only write-in opposition expected to be on the ballot in November, Walton is all but certain to be the first female mayor in New York's second largest city. A self-described Democratic Socialist, she will also be the first socialist mayor of a major American city since 1960.