Resolution Criteria

The Republican primary for U.S. House New York District 21 will be held on June 23, 2026. The winner will be determined by the candidate receiving the most votes in the primary election. Results will be available from the New York State Board of Elections at https://elections.ny.gov/ and major news outlets covering the race.

Background

Incumbent Republican Elise Stefanik was re-elected with 62.1% of the vote in 2024 and is not seeking re-election. The Cook Partisan Voter Index for this district is R+10, making New York's 21st the 133rd most Republican district nationally. Anthony Constantino, and Robert Smullen are running in the Republican primary.

Anthony Constantino is the founder and CEO of Sticker Mule, a global printing and tech company based in Amsterdam, N.Y with over 1,000 employees, and wrote a viral endorsement of President Trump in the 2024 election, and has generated much controversy

Robert Smullen is a New York State Assemblyman and former Marine.