President Trump-backed Republican Michael LiPetri won a hard fought GOP primary over Rudy Giuliani-endorsed insurgent Greg Hach to take on Democratic Rep. Tom Suozzi in New York’s swing Third House District covering parts of Nassau County and Queens.

It was a rare split between Trump and ex-Big Apple mayor Giuliani, a longtime pal of the president who served as his personal lawyer.

The Nassau County Republican Party and GOP gubernatorial candidate Bruce Blakeman strongly backed LiPetri, a former state assemblyman who lost to Suozzi by only 3 percentage points in 2024,  when he was the Republican nominee.

Mike LiPetri, Republican candidate for the New York's 3rd Congressional District Congress speaks ahead of Vice President JD Vance in Bethpage, N.Y., Wednesday, June 17, 2026. (AP Photo/Matt Rourke)LiPetri had the support of President Trump. AP Photo/Matt Rourke

LiPetri ended up with more than 81% of the vote, according to the Associated Press, which called the race for him at around 10 p.m.

In a sign that the race was competitive, Vice President JD Vance parachuted in for a Long Island event last week where he trashed Suozzi and lauded Lipetri at what was billed as a government, not campaign, event.

Hach, 55, a successful attorney and Air Force veteran, poured $1 million of his own money into the primary campaign. He vowed to plow more of his fortune into the race if elected the Republican nominee.

Suozzi, 63, a former Nassau County executive, is slightly favored to win re-election during a mid-term general election with Republican Trump, who has sagging popularity in New York, at the helm in the White House.

United States Representative Thomas Suozzi (Democrat of New York) makes remarks during the Congressional Gold Medal ceremony honoring the African-American men of 369 Infantry Regiment, commonly known as the “Harlem Hellfighters,” in recognition of their unwavering dedication to military service, cultural contributions, and bravery in the face of discrimination during World War One, in Emancipation Hall in the US Capitol on Wednesday, September 3, 2025. Accepting the medal is Ms. Debra Gillett, Granddaughter of Harlem Hellfighter Sergeant Leander Gillett.LiPetri will face off against Democratic incumbent Tom Suozzi (pictured) in November. Kyle Mazza – CNP for NY Post

He quit Congress to mount a failing primary campaign for governor against fellow Democrat Kathy Hochul in 2022.

But Suozzi won back the seat in House District 3 in a special election following the expulsion of Republican Rep. George Santos, a serial liar who was convicted of corruption.

He later won re-election in a surprising nail-biter against LiPetri.