A man was arrested after he allegedly threatened to kill supporters of President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE and Rep. Lee Zeldin Lee ZeldinDCCC reserves new ad buys in competitive districts, adds new members to 'Red to Blue' program Overnight Defense: House panel probes Pompeo's convention speech | UN council rejects US demand to restore Iran sanctions | Court rules against Pentagon policy slowing expedited citizenship The Hill's 12:30 Report: Republicans conduct in-person convention roll call MORE (R-N.Y.) at the congressman’s Long Island campaign headquarters.

Martin Astrof, 75, showed up at Zeldin’s Nesconset office on Friday morning and verbally assaulted Zeldin and Trump fans, the Suffolk County Police said in a statement.

When he tried to drive off, Astorf almost hit volunteer Donato Panico with his car.

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Astrof was arrested outside his home shortly after the incident.

He has been charged with making terroristic threats and reckless endangerment, police said.

Zeldin condemned the attack on Twitter late Friday night.

“In the US, political scores are settled at the ballot box, not by trying to kill your political opponents,” Zeldin wrote. “Donato Panico is a great American, supporter of @realDonaldTrump & one of my campaign vols. He shouldn’t have been targeted like this today for his passion and involvement.”

In the US, political scores are settled at the ballot box, not by trying to kill your political opponents. Donato Panico is a great American, supporter of @realDonaldTrump & one of my campaign vols. He shouldn't have been targeted like this today for his passion & involvement. https://t.co/Rh8Ae6MR4x — Lee Zeldin (@leezeldin) July 6, 2018

Zeldin followed up with a tweet on Saturday, thanking Trump’s eldest son Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE for reaching out to make sure Donato was doing alright after the confrontation.