A member of the Democratic Socialists of America who was born in Gaza has entered the race for the U.S. Senate in Pennsylvania, mounting a primary challenge against Sen. John Fetterman, one of the chamber's most outspoken defenders of Israel.

Ahmed Moor, a 42-year-old Palestinian American writer and businessman, declared his candidacy in a post on X, saying he intends to take on Fetterman in the state's Democratic primary.

"I'm running to end the war in Iran and to promote the dignity agenda: free healthcare, free childcare, and affordable housing," Moor wrote. "I'm calling for accountability for genocide, for ICE and for corruption. And finally, for the protection of our civil liberties in America."

His campaign is part of a wider push by DSA members seeking elected office, as progressive frustration with moderate Democrats continues to build within the party.

Fetterman has repeatedly angered the left flank of his party through his firm backing of Israel during its war against Hamas and his willingness to side with President Donald Trump on certain policy questions.

According to The Philadelphia Inquirer, Moor came to Pennsylvania as a child, went on to earn degrees from the University of Pennsylvania and Harvard University, and spent time working in finance before turning to journalism. Before starting his campaign, he had been living in Jordan and later moved back to Philadelphia with his wife, where the couple is raising their children.

On his campaign website, Moor took direct aim at American financial support for Israel. "A few years ago my birthplace was turned to rubble in a genocide funded by our tax dollars, with the support of politicians on both sides of the aisle who can't find money for transit or removing asbestos from our schools," the site reads.

"It's clear the United States funds wars based on corruption and lies and has turned its back on its own people," the website continues. "We must make sure this never happens again."

Fetterman, a Democrat, has not yet said publicly whether he plans to run for another term. His office did not respond to a request for comment from Fox News Digital about the challenge.