In a development that could decisively shape the Republican primary in New York’s 21st Congressional District, former New York City Mayor Rudy Giuliani has formally endorsed businessman Anthony Constantino, signaling a major consolidation of support behind the first-time candidate and positioning him as the clear frontrunner in the race.
Giuliani’s backing carries significant weight among Republican voters, particularly those aligned with former President Donald Trump. Long regarded as one of Trump’s most loyal and visible allies in New York, Giuliani’s endorsement is widely seen as a stamp of approval from the core of the MAGA movement. For Constantino, the endorsement not only boosts his credibility but also helps solidify his identity as the candidate most closely aligned with Trump-era politics.
“America needs 100 Constantinos,” Giuliani said in a statement. “He will fight for the American people and is totally self-funding his campaign, so he can ignore any and all special interests.” The emphasis on self-funding underscores a key pillar of Constantino’s campaign message: independence from traditional political donors and outside influence.
The endorsement comes at a pivotal moment, as new polling suggests Constantino already holds a commanding lead in the primary. A recent survey conducted by GrayHouse, a firm associated with Rep. Elise Stefanik, shows Constantino ahead of his only opponent by 27 points. With Giuliani’s endorsement now added to that advantage, political observers say the race may be shifting from competitive to effectively decided.
Constantino has leaned heavily into combative rhetoric throughout the campaign, including sharp criticism of political opponents and high-profile figures. His attacks on New York City leadership and broader national security concerns have resonated with segments of the Republican base that prioritize aggressive, uncompromising messaging. Giuliani’s endorsement reinforces that approach, suggesting alignment not just in policy but in tone and political strategy.
“I love Rudy Giuliani, so his endorsement is an incredible honor,” Constantino said. “I’ll do everything I can to make him proud for supporting me.”
Beyond endorsements and polling, Constantino’s campaign has also highlighted strong digital engagement as evidence of growing momentum. His social media presence, particularly on Facebook, has generated unusually high interaction levels for a congressional candidate. Campaign officials also point to web traffic data indicating that Constantino’s campaign site significantly outperforms that of his opponent, suggesting broader grassroots interest.
Constantino, the founder and CEO of Sticker Mule, enters the race with a high-profile business background and a reputation for unconventional moves. He previously drew national attention by prominently displaying pro-Trump signage at one of his company’s facilities and marketing that stance to millions of customers. He has also cultivated a personal brand that blends entrepreneurship with populist political messaging.
Taken together, Giuliani’s endorsement, a substantial polling lead, and strong online engagement paint a picture of a candidate consolidating support at a critical stage. While the primary is still underway, the combination of institutional backing and grassroots momentum is increasingly framing Constantino not just as a leading contender, but as the candidate to beat and the presumptive Republican nominee.
