Rep. Seth Moulton (D-MA), who on Wednesday announced a primary challenge to Sen. Ed Markey (D-MA), announced Thursday that he will return donations he has received from AIPAC and will reject further donations from the group.

Massachusetts is a solidly Democratic state but has also a large population of Jewish pro-Israel voters who might be inclined to support the more-moderate Moulton. Though his record on Israel policy is somewhat mixed, Moulton’s record on the issue is more pro-Israel than that of Markey, who is a prominent critic of Israel and has voted repeatedly against weapons transfers to the Jewish state.

“I support Israel’s right to exist, but I’ve also never been afraid to disagree openly with AIPAC when I believe they’re wrong. In recent years, AIPAC has aligned itself too closely with Prime Minister [Benjamin] Netanyahu’s government,” Moulton said in a statement. “I’m a friend of Israel, but not of its current government, and AIPAC’s mission today is to back that government. I don’t support that direction. That’s why I’ve decided to return the donations I’ve received and will not be accepting their support.”

According to campaign finance watchdog group Open Secrets, Moulton received around $43,000 from AIPAC and its supporters in the 2024 election cycle, out of a total of $2.8 million raised. The Boston Globe reported that Moulton plans to return $35,000 in donations from the current election cycle.

AIPAC issued a blistering statement in response to Moulton.

“Rep. Moulton is abandoning his friends to grab a headline, capitulating to the extremes rather than standing on conviction,” spokesperson Marshall Wittmann said in a statement. “His statement comes after years of him repeatedly asking for our endorsement and is a clear message to AIPAC members in Massachusetts, and millions of pro-Israel Democrats nationwide, that he rejects their support and will not stand with them.”

Moulton’s stance echoes those taken by other prominent Democratic candidates across the country seeking to appeal to the progressive Democratic base increasingly hostile to Israel.

Moulton’s changed stance on accepting support from AIPAC is a sign of how even more-moderate Democrats are facing pressure from the party’s activist base to distance themselves from embracing Israel. The Massachusetts congressman had been endorsed by AIPAC prior to declaring his Senate campaign.

“I’m cautiously optimistic that the recent breakthrough in Gaza will move us closer to ending the horrific violence in the region,” Moulton added in the statement. “A political resolution that allows Israelis and Palestinians to live side by side in peace is exactly the kind of framework I’ve been calling for from the beginning.”

Barry Shrage, the longtime former president of the Combine Jewish Philanthropies of Greater Boston and a professor of practice in Brandeis University’s Hornstein Jewish Professional Leadership Program said it’s tough to predict where pro-Israel Jewish voters will land.

“I think a lot of people will remember what Markey has been doing and where Markey was coming from — kind of a leader of the anti-Israel ‘progressive’ Democratic faction,” Shrage said. “But then people are going to want to know, really, what Moulton really thinks.”

“He made a decision that the progressive wing of the Democratic Party is more important to him than the Jewish community — or he thinks that the Jewish community has also turned against Israel, which, by the way is not the case, not in Boston,” Shrage said, of Moulton’s denunciation of AIPAC. “It’s kind of a cop-out for him to say, ‘I disagree with Netanyahu and that’s why I won’t take any AIPAC support.’”

Shrage noted that he saw Markey aligning himself more closely with anti-Israel figures and groups during his 2020 campaign, pointing to an op-ed in which he wrote, “his campaign … has made a concerning shift by welcoming and featuring support from individuals and organizations with highly divisive and polarizing approaches to Israel, our country and our world and all that goes with it, socially, politically, and economically.”

Shrage supported then-Rep. Joe Kennedy (D-MA) against Markey in 2020.

He told JI that Markey’s leftward shift on Israel issues has continued in the ensuing six years, noting that Markey “won the race, in a way, by selling himself” to the left wing of the party.

Rep. Seth Moulton (D-MA) announced on Wednesday that he plans to mount a challenge to Sen. Ed Markey (D-MA), grounding his campaign in an argument for generational change.

“I just don’t believe Sen. Markey should be running for another six-year term at 80 years old,” Moulton said in his Senate race announcement. “Even more, I don’t think someone who’s been in Congress for half a century is the right person to meet this moment and win the future. Sen. Markey is a good man, but it’s time for a new generation of leadership.”

But unlike many of the younger challengers taking on older Democratic incumbents in the current election cycle, Moulton, 46, is generally more moderate, including on foreign policy issues, than Markey, an outspoken progressive. While Moulton has been strongly critical of Israeli operations in Gaza, his record as a whole leans more pro-Israel than Markey’s.

Markey faced a similar challenge from former Rep. Joe Kennedy (D-MA) in 2020 — ahead of the current anti-gerontocracy push in parts of the Democratic Party. Young progressives rallied around Markey, who won the race by 10 points. In that campaign, Kennedy sounded more supportive of Israel than the senator he was attempting to unseat. 

A recent Fiscal Alliance Foundation poll of the Senate race found that 63% of Massachusetts voters think Markey should not run for another term. In that same survey, Moulton led Markey, 38-30% among Democratic primary voters.

Markey is a prominent progressive voice in the Senate and voted seven times in the last year in favor of resolutions led by Sen. Bernie Sanders (I-VT) to block various weapons transfers to Israel. He memorably faced boos at a pro-Israel rally just days after the Oct. 7, 2023, attacks when he called for de-escalation between Israel and Hamas.

He also joined a letter accusing Israel of violating U.S. arms sales conditions imposed by the Biden administration, and pushed to incorporate those conditions into the supplemental aid package for Israel and other allies.

Markey called the U.S. strike on Iran’s nuclear program “illegal and unconstitutional” and said the attack “holds dangers for all Americans.” 

“This attack may set back but will not stop Iran’s efforts to get a nuclear bomb. The regime can rebuild its program and will now be highly motivated to do so. A diplomatic solution remains the best way to permanently and verifiably prevent Iran from acquiring a nuclear weapon,” Markey continued. “Trump’s illegal actions raise the risk of escalation into a wider regional war with grave risks for U.S. troops and personnel and civilians in the region.”

During a committee markup of the Antisemitism Awareness Act earlier this year, Markey led an amendment opposing the revocations of visas, detentions and deportations of students and faculty based on “protected conduct under the First Amendment,” one of a series of amendments that helped torpedo the bill.

Markey appeared on the streaming show of Hasan Piker, a far-left commentator who has repeatedly faced criticism for antisemitic rhetoric and support for terrorism, during last year’s Democratic National Convention. 

While Moulton, a Marine veteran, has been critical of Israel’s war operations in Gaza and called for increased humanitarian aid, he has not backed congressional efforts to condition, withhold or end U.S. aid to Israel since Oct. 7. He voted — with most House lawmakers — in favor of supplemental aid to the Jewish state last year.

After a meeting in May 2024 with then-Israeli Ambassador to the U.S. Michael Herzog, Moulton said he opposed Israel’s plans to launch a full-scale invasion of the southern Gazan city of Rafah and backed President Joe Biden’s threat to withhold weapons if Israel proceeded with that operation. In 2019, prior to the recent war in Gaza, Moulton offered support for a bill that would have placed restrictions on the use of U.S. military aid to Israel.

In July 2025, Moulton said in a statement that it is “a moral imperative for the Netanyahu government to alleviate this suffering” in Gaza and that “Hamas bears primary responsibility, but Israel has the ability and the obligation to help.”

“I want Israel to succeed in defeating Hamas and bringing the hostages home. But that won’t happen if its policies undermine its own mission, and you cannot win a war against terror by allowing civilians to starve,” Moulton continued, citing his own experience serving in Iraq. He said he told the Israeli ambassador directly that “what’s happening in Gaza is unacceptable.”

Weeks after the Oct. 7 attacks, Moulton cautioned Israel against launching an operation in Gaza without a robust plan for what would come after the war.

Moulton voted against several Republican-led measures — which split the Democratic caucus — that would have tightened U.S. sanctions on Iran and limited presidential authority to waive such sanctions, as well as against sanctions on the International Criminal Court.

At the same time, he voted in favor of redesignating the Houthis as a Foreign Terrorist Organization, having previously led a letter to the Biden administration supporting such action, and was a lead co-sponsor of a bill to expand funding for a cooperative counter-tunneling program with Israel.

Moulton stopped short of the blanket condemnation that many Democrats expressed for the U.S. strikes on Iran, saying, “One of the reasons I was reticent to just immediately condemn the strikes is because anything that gets us back to the negotiating table is helpful — that’s where we need to be at the end of the day,” though he said he would not have voted to provide congressional approval for those strikes.

He subsequently accused administration officials of “outright lying about things that we just don’t know yet” for declaring shortly after the strikes that the U.S. had completely “obliterated” Iran’s key nuclear facilities.

On antisemitism, Moulton voted in favor of the Antisemitism Awareness Act, as well as for resolutions describing anti-Zionism as antisemitic, calling for college presidents to resign over their testimony to Congress on campus antisemitism and for a GOP-led resolution condemning the firebombing of a hostage advocacy rally in Boulder, Colo., which also praised Immigration and Customs Enforcement.

Shortly after the Oct. 7 attacks, when a coalition of Harvard University student groups issued a statement condemning and blaming Israel for the event, Moulton, a Harvard alumnus, said that he “cannot recall a moment when I’ve been more embarrassed by my alma mater” and later condemned then-Harvard President Claudine Gay’s comments at a House hearing on antisemitism.

Both Markey and Moulton have supported expanded funding for the Nonprofit Security Grant Program to help protect Jewish and other nonprofit institutions.

Following Elizabeth Magill’s resignation as the president of the University of Pennsylvania, public attention is now focusing on Harvard and the Massachusetts Institute of Technology, which are facing calls to unseat their own presidents. But Harvard’s Claudine Gay and MIT’s Sally Kornbluth are thus far facing less in-state political pressure for their resignations.

Pressure from Pennsylvania Gov. Josh Shapiro played a role in Magill’s ouster; other Pennsylvania political figures, such as Senate candidate David McCormick and Sens. Bob Casey (D-PA) and John Fetterman (D-PA) were also critical of the former Penn president. But such calls have been less prevalent so far from within Massachusetts.

“Strong, moral leadership should be qualification number one for the president of the world’s leading university, but as a tireless advocate for ending the ‘cancel culture’ so pervasive at Harvard over the past decade, I’m not going to rush to cancel the president,” Rep. Seth Moulton (D-MA), a Harvard alum, said in a statement to Jewish Insider on Monday. “That’s a decision the university’s governing boards should consider carefully.”

Rep. Jake Auchincloss (D-MA) said Friday, “I would say that in the last two months, Dr. Gay has been making a lot of second and third statements when she should have gotten it right the first time. Genocide is unacceptable, period,” but said he’d leave the decision of her resignation to the school’s board.

Sen. Elizabeth Warren (D-MA) said last week, “If you can’t lead, if you can’t stand up and say what’s right and wrong — very much in the extreme cases, and these are the extreme cases — then you’ve got a problem,” but didn’t respond to a question from JI on Monday about whether the schools’ boards should ask their presidents to resign.

Neither did Sen. Ed Markey (D-MA) or Massachusetts Gov. Maura Healey, a Democrat.

Gay came under increased scrutiny over the weekend over accusations she plagiarized portions of her doctoral thesis, which she has denied.

Several prominent Harvard alums in Congress, including Senate Majority Leader Chuck Schumer (D-NY), also did not respond to requests for comment.

Rep. Elise Stefanik (R-NY), who led the questioning at a House hearing last week that fueled outrage toward the three college leaders, renewed her calls on Monday for Gay and Kornbluth to be fired.

“As clear evidence of the vastness of the moral rot at every level of these schools, this earthquake has revealed that Harvard and MIT are totally unable to grasp this grave question of moral clarity at this historic moment as the world is watching in horror and disgust. It is pathetic and abhorrent,” Stefanik said in a statement. “The leadership at these universities is totally unfit and untenable.”

Sen. Ted Cruz (R-TX), who led a letter with Stefanik and other Republican Harvard alums in October raising concerns about the treatment of Jewish students on campus, said on his podcast on Monday, “I think we could easily see all three of these college presidents lose their jobs because of this testimony.”

“Both those institutions are hoping this just blows over,” Cruz continued. “They’re defending them in essence by not firing them right away after they witnessed this testimony.”