The open seat in New York’s 21st Congressional District, following Elise Stefanik’s retirement, has positioned Republican nominee Anthony Constantino with a clear edge in trader assessments. The district’s consistent Republican voting patterns, including strong support for Donald Trump in recent cycles, underpin Constantino’s 63% implied probability despite a competitive polling environment. Constantino secured the nomination with Trump’s endorsement and has leveraged substantial self-funding and business background to maintain leads in most forecasts rated Lean or Likely Republican. Democrat Blake Gendebien, a dairy farmer emphasizing moderate positions on rural issues like healthcare and energy costs, has narrowed the gap in recent surveys, though the district’s fundamentals continue to favor the Republican candidate ahead of the November 3 general election.