Republican Anthony Constantino wins the GOP primary to replace Rep. Elise Stefanik in New York’s 21st Congressional District, according to preliminary results. Constantino defeats New York Assemblymember Robert Smullen in the contest for the party’s nomination, with Decision Desk HQ projecting that Constantino will advance to the November general election. The race is framed as a contest between an establishment-backed candidate and a Trump-endorsed challenger. CBS News and The Hill both report the same outcome: Constantino prevails over Smullen in the primary held for the district’s 21st seat. With the primary concluded, Constantino becomes the Republican nominee expected to face Democratic candidates in the general election. The reports do not indicate a change in other races or provide additional details about voter turnout, margins, or remaining primary results. The focus remains on Constantino’s win and its implications for the November contest in the district currently represented by Stefanik.