President Donald Trump has endorsed businessman Anthony Constantino in the race for New York’s 21st Congressional District, setting up a divide within Republican ranks over who should succeed Rep. Elise Stefanik, who is not seeking reelection.

Constantino, CEO of the company Sticker Mule, secured Trump’s support over state Assemblyman Robert Smullen, who had previously been endorsed by the New York State Republican Party and the Conservative Party. The endorsement signals Trump’s continued influence in shaping GOP primaries, particularly in districts where his backing can carry significant weight.

In a statement, Trump described Constantino as an “America First Patriot” and highlighted his support among prominent allies, including Rudy Giuliani and Roger Stone. He also pointed to Constantino’s public support during past campaigns, including a high-profile legal dispute over a large pro-Trump sign displayed in Albany.

Constantino welcomed the endorsement, saying he was honored and expressing confidence in both the primary and general election. He has positioned himself as a pro-business candidate focused on economic growth, energy production, border security, and support for law enforcement and the military.

The endorsement drew criticism from Smullen, who suggested outside influence played a role in Trump’s decision and argued the choice was a mistake. Smullen, while backing Trump’s broader agenda, also questioned Constantino’s fitness for office. The two candidates have previously exchanged sharp criticisms during the campaign.

The district has leaned strongly Republican in recent election cycles, with Trump carrying it by a wide margin in 2024. Despite that, Democrats are signaling interest in competing for the seat, with New York Gov. Kathy Hochul expressing optimism about a potential upset.

Nonpartisan election analysts have so far rated the race as safely Republican, though the primary contest is expected to draw attention due to the split between Trump’s endorsement and the state party’s preferred candidate.