Rep. Ro Khanna (D-CA), a potential 2028 presidential candidate, is sparring with AIPAC on social media over ads the group ran criticizing his support for a House resolution describing the war in Gaza as a genocide.

“AIPAC just poured money into a series of ads in my district calling me a liar for speaking out about the truth in Gaza,” Khanna said in a video posted to X on Tuesday. “They’re asking you to disbelieve what you’ve seen on your own phone with your own eyes. AIPAC wants to weaken me electorally and prevent me from having a seat at the table in the leadership of our country.”

Khanna went on to link the ad campaign to a range of other issues unrelated to AIPAC, saying that he will not “cave to special interests” on health care, tech and artificial intelligence; bend to “the Epstein class, rich and powerful men who are totally disconnected from ordinary Americans and believe the rules don’t apply to them”; or accept PAC, lobbyist or corporate funding.

The ad in question, which ran on social media and digital platforms, proclaims in bold text: “Ro Khanna is lying to you.” It references his support for the Gaza genocide resolution, led by Rep. Rashida Tlaib (D-MI), stating, “Claims of genocide are a dangerous attempt to distort facts and rewrite history.” AIPAC is running identical ads against a series of far-left Democrats supporting the same resolution.

AIPAC spokesperson Marshall Wittmann said that Khanna is echoing antisemitic tropes.

“The war in Gaza has profoundly impacted millions of Israelis, Palestinians, and Americans, yet rather than helping build a better future of peace, Rep. Khanna is instead rewriting history and parroting a dangerous blood libel,” Wittmann said in a statement. “The only genocide in this war happened on October 7, when Hamas openly admitted it wanted to kill every Israeli man, woman, and child it could. Our ad simply informs his constituents about his support for legislation that is based on a lie, and it evidently got under his skin.”

In a post on X, AIPAC added, “The same ad is running featuring other cosponsors. You’re not that special.”

Wittmann did not say how much money AIPAC had spent on the ads. According to Meta’s ad library tool, the group spent between $900 and $999 running the ad on Facebook and Instagram.

Khanna has made attacks on AIPAC, and criticism of Israel more generally, a significant part of his legislative message in recent months, at times associating with extreme anti-Israel and antisemitic figures.