For decades, American politicians considering a presidential run have traveled to Iowa cornfields and New Hampshire town halls to introduce themselves to voters before launching their campaigns.
Last week, two potential 2028 presidential contenders chose a different route.
Rahm Emanuel, the former Chicago mayor and Barack Obama’s White House chief of staff, traveled to Tel Aviv, where he delivered a speech defending the U.S.-Israel relationship but also cautioning about the growing erosion of Democratic support for the Jewish state in the wake of the Gaza war and amid settler violence.
A tiny fraction of the target audience was in the room. The majority was back home in the U.S., considering who in their party could possibly win as their party’s White House nominee — and more immediately how to use their votes this year to regain power.
Meanwhile, Rep. Ro Khanna, a leading progressive Democrat from California, took a high-profile trip to the occupied West Bank, where he was caught in an altercation with armed Israeli settlers who blocked his route to an elementary school that extremist settlers had destroyed. Khanna said he plans to share what he witnessed firsthand about the Palestinians’ “injustice” on the campaign trail if he runs.
The contrasting trips reflected a trend already reshaping Democratic politics. Graham Platner, the Maine Senate nominee who was forced to withdraw from the race following allegations of sexual assault, made opposition to Israel and AIPAC one of the defining themes of his campaign. His defiant parting message — in which he denied the allegations — included a vow to keep working to “end the genocide.”
On Tuesday, House Democratic leader Hakeem Jeffries of New York, hoping to become speaker after the midterm elections, added his voice to the mix. In guidance issued to his members ahead of a vote to cut off aid to Israel — introduced by Republican Rep. Thomas Massie from Kentucky and co-sponsored by Khanna — Jeffries said that while he’ll oppose the measure, “given the strongly held views throughout the Caucus in this important area of foreign policy, we are not whipping this vote” against it. He added that going forward, “a meaningful change in direction is needed.”
The episodes in the past week highlight how quickly and powerfully the U.S. relationship to Israel — which has been receiving $3.8 billion annually under a 10-year memorandum of understanding between the U.S. and Israel, which runs through 2028, plus additional billions in arms sales — has come to dominate Democratic Party politics.
A stew of different factors are in the mix — ranging from President Donald Trump’s fateful decision to wage war on Iran alongside Israel, the success of New York City Mayor Zohran Mamdani and the Democratic Socialists of America in showing how to mobilize voters on the issue, and voter backlash against massive spending on elections by U.S. supporters of military aid to Israel, all against the backdrop of the Gaza war and Israel’s continued military action in the region.
Sudden shifts
Israel’s role in Democratic politics this year signals a major shift — especially after a wave of insurgents who made condemning Israel central to their campaigns beat mainstream Democrats in New York, New Jersey, Pennsylvania and Colorado primaries.
The Democratic revolt is not entirely new. In the 2024 presidential race, the conflict in Gaza spurred some voters to stay home rather than cast ballots after the “uncommitted” movement blamed President Joe Biden and Vice President Kamala Harris for civilian deaths — missing voters who may have swayed the results in Michigan, a swing state with a large Arab-American population. Activists said Democratic National Committee officials acknowledged that the Biden administration’s support for Israel contributed to Harris’ loss to Donald Trump.
But the protest movement has since swelled to include a bigger constituency — one not content to sit out elections or confined to moments of war. For many progressive candidates, challenging the U.S.-Israel alliance and advocating for Palestinian rights have become a marker of ideological identity and the party’s future.
Bill de Blasio, who himself evolved from a staunch supporter of Israel and an ally of AIPAC after he left office as New York City mayor and mounted an unsuccessful campaign for Congress, said in an interview that the shift reflects a deeper emotional connection to the conflict that is driving the engagement and organizing. Disaffected voters feel personally implicated by U.S. support for Israel, de Blasio said: “It’s a sense that this was done with our weapons and our money.”
In some districts with entrenched incumbents, such lines of attack by challengers went nowhere in Democratic primaries. But in some districts where the grassroots Democratic Socialists of America endorsed candidates and mobilized voters, they have scored significant upsets.
The result is a growing wave of democratic socialists and progressives winning Democratic primaries, portraying support for Israel as incompatible with progressive values.
Matt Duss, a former senior foreign policy adviser to Sen. Bernie Sanders of Vermont, said Gaza became a breaking point for many Democratic voters because of its human toll, but added that the political shift runs deeper. “It has come to stand for an issue of the establishment versus the insurgent populist left,” Duss said. Gaza, he added, “created this breaking point” where the “floodgates opened” to challenging the pro-Israel consensus that has dominated American politics for so long.
The Mamdani model
Zohran Mamdani’s left-field victory last year as New York City mayor showed candidates nationally that running against Israel could energize voters even in a local election. Mamdani, a young democratic socialist, rose to power by embracing pro-Palestinian and anti-Israel activism in a mayoral campaign otherwise focused on economic justice and progressive reform. Mamdani defeated establishment candidates despite refusing to scale back on his support for boycotts and declining to condemn the slogan “globalize the intifada” even as many Jewish voters heard it as a call to violence. Public opinion polls showed that Mamdani’s unapologetic criticism of Israel resonated with a majority of New York City voters.
The wins of three candidates endorsed by Mamdani in congressional primaries last month reinforced running against Israel as a winning strategy in progressive-leaning districts. Brad Lander, the former city comptroller allied with Mamdani, defeated two-term incumbent Rep. Dan Goldman by labeling Goldman as insufficiently activist on Israel, even as both — identifying themselves as liberal Zionists — touted similar views on addressing the Israeli-Palestinian conflict. Lander was the first Jewish candidate to call for an end to U.S. aid to Israel.
In Upper Manhattan and the Bronx, Rep. Adriano Espaillat, chair of the Congressional Hispanic Caucus, lost to Darializa Avila Chevalier, a former organizer of the pro-Palestinian encampment at Columbia. Avila Chevalier drew backlash for inflammatory comments about Israel and for attending a Times Square rally on Oct. 8, 2023, widely condemned for celebrating Hamas — but won anyway.
And in Brooklyn, Assemblymember Claire Valdez beat the establishment favorite for an open House seat. Her supporters condemned her opponent, Brooklyn Borough President Antonio Reynoso, for refusing during much of the campaign to call the Gaza war a genocide and for taking a 2015 trip to Israel.
The AIPAC factor
The trend is not limited to New York. Across the country, Israel has become a defining issue, even in races with relatively small Jewish electorates or where foreign policy would once have played little role. In Colorado, Melat Kiros, a democratic socialist, unseated a 15-term incumbent using Israel as a wedge throughout the campaign.
In California, State Sen. Scott Wiener, a candidate for Congress who is one of the leading Jewish Democrats statewide, has found himself navigating intense pressure and confrontations from progressive activists even after he capitulated to demands that he characterize Israel’s military campaign in Gaza as a genocide.
According to data compiled by Milan Singh, a fellow at The Argument, a liberal opinion-focused media publication, insurgent progressive candidates for Congress mentioned Israel in 48% of their fundraising emails.
Opposition to AIPAC and criticism of the Israeli government have increasingly become shorthand for challenging “entrenched power, big money politics and the party establishment,” said Democratic strategist Lis Smith.
Nowhere is the changed climate being tested more vigorously than in Michigan’s open Senate race. The Aug. 4 primary between Rep. Haley Stevens and former Wayne County health director Abdul El-Sayed has become one of the most expensive races in the country this year.
Like other candidates who have run campaigns with Israel front and center, El-Sayed has focused heavily on condemning AIPAC, the campaign group backing congressional candidates who support U.S. military aid to Israel.
AIPAC has returned the favor with massive spending to attempt to defeat El-Sayed. Its super PAC, the United Democracy Project, has already spent $14.9 million backing Stevens. AIPAC also raised several million dollars for Stevens by directing its donors to online portals that funnel money directly to the candidate’s campaign.
Until this year, AIPAC was obscure to most voters. But its massive spending to support favored House and Senate candidates has been matched by progressive opponents using it to rally voters to shun those candidates.
In primaries this year, AIPAC and -aligned groups are pushing back against candidates who made Palestinian rights and support for restricting offensive arms sales to Israel a theme of their campaigns. AIPAC is also spending heavily to defend a seat in St. Louis, Missouri, that it helped win in 2024.
Duss said the politics surrounding Israel increasingly functions as a broader test of credibility for candidates seeking to dislodge Democratic Party leaders seen as holding back progress — not just on Israel, but also on such goals as Medicare for All. “It’s become an issue that you could speak out on if you want to demonstrate your anti-establishment bona fides,” he said.
In Michigan, voter scrutiny has broadened beyond just Israel to the question of why powerful interests are aligned with Stevens.
The changing politics is beginning to impact how incumbents are voting in Washington. In April, 40 Senate Democrats voted to block $295 million for the transfer of bulldozers — used by the Israeli military to demolish homes in the West Bank and Gaza — and 36 of them also supported a measure to block the sale of 1,000-pound bombs to the Jewish state. Those counts shattered a previous high of 27 Democrats who backed a similar pair of resolutions last year.
The governing challenge
The electoral victories may only be the beginning. The real test will come should the Democrats regain control of the House in November.
Matt Bennett, executive vice president at the centrist Democratic group Third Way, said that Israel “has exploded as a divisive issue in democratic politics” at a moment when Democrats have no power, as the minority in both the House and Senate, to shape the foreign policy of the United States. “It’s remarkable how anger is being directed at people who have no agency over these questions.”
If they win back the House, he said, those divisions will become much harder to avoid.
Whether driven by outrage over Gaza, frustration with the government of Prime Minister Benjamin Netanyahu or broader resentment of political institutions, Israel has become a defining issue — something few Democratic strategists expected even a few years ago.
Smith, who advises political organizations Majority Democrats and the Bench, called the events of the 2026 primary seasoin a “turning point” in the Democratic Party’s stance toward Israel. “I think that relationship is going to be strained for the foreseeable future,” she said.
The combination of Netanyahu’s actions in Gaza, Lebanon and the West Bank, and Trump’s actions in the war on Iran, are going to have a “lasting impact on our politics,” said de Blasio. “I don’t think that it can be put back in the bottle.”
Israel’s election crossroads
Throughout the debate over Israel, mainstream Democrats have tried to direct their criticism at Netanyahu and his far-right partners. Even Bernie Sanders, the elder in the progressive caucus, framed the charge for ending U.S. military aid as opposition to the “extremist Netanyahu government.”
Israelis will get a chance to change leadership in the upcoming Oct. 27 Knesset election. Recent polls show that Netanyahu, seeking a seventh term in office, is trailing an opposition bloc led by two contenders for premier — former Prime Minister Naftali Bennett and former IDF chief Gadi Eisenkot.
If Netanyahu loses, some centrist Democrats believe a different Israeli government will help ease tensions.
“The intense emotion surrounding the issue could lessen somewhat,” said Matt Bennett of Third Way. Though the next Israeli leader will not dramatically break with Netanyahu’s policy on the Israeli-Palestinian conflict or Gaza, “not having Netanyahu there would matter a lot because he has become he has inserted himself into partisan politics in the United States to such a degree that he has become the face of these campaigns,” he added.
Progressives are less convinced. They see the shift and generational reassessment of the U.S.-Israel relationship as a larger challenge. “If you had a different figure, one who is not so odious, that would give an opportunity to change the relationship,” Duss said. “But I don’t think it’s going back because the differences here are not just about one person; they are systemic.”
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