A 29-year-old democratic socialist beat three decades of incumbency and a coalition of dark-money PACs tied to AIPAC, and the machine that built the wall against her never had to put its own name on the ads.
Diana DeGette has not taken money from the American Israel Public Affairs Committee since 2022, when she accepted a single $2,900 check and then, by her own account, swore the lobby off. AIPAC never endorsed her this cycle. Its name appears on none of the mailers that landed in Denver mailboxes through June, none of the television spots accusing her opponent of statements “laced with antisemitism.” And yet by the time polls closed on June 30th, AIPAC’s national super PAC had routed at least $750,000 into the race in a single month through a conduit two organizational layers removed from its own name, on top of a running total that put its contribution to that conduit above $1 million since April. The distance between what AIPAC’s spokesman would confirm and what the Federal Election Commission’s own filings show is not an accident of disclosure law. It is the architecture.
Melat Kiros won anyway. The Associated Press called Colorado’s 1st Congressional District at 10:03 p.m., with Kiros leading Representative Diana DeGette by six points in a district that has sent a Democrat to Congress in every election since 1970. DeGette, sixty-eight, had held the seat since Bill Clinton’s first term. Kiros, a twenty-nine-year-old lawyer and PhD student who immigrated from Tigray, Ethiopia, as an infant, was born the year DeGette was first sworn in. By the time the crowd at her watch party on Broadway had finished a three-minute scream that resolved into a chant of her own first name, the two most durable facts of the race had already collided: an incumbent whose thirty-year career survived on the assumption that seniority itself was the argument, and a challenger who spent the campaign insisting that seniority had produced nothing worth defending.
Kiros was working in the New York office of the law firm Sidley Austin in 2023 when she published an open letter defending university students who were protesting Israel’s war on Gaza. The firm fired her rather than take the post down. She has said publicly, on her campaign’s own site, that when she spoke out over Gaza, powerful people warned her that silence would cost her nothing and speech would cost her everything, and that she chose speech anyway. That is the origin story she tells voters, and it is also, more usefully for a reporter, the origin story that explains why a member of Congress’s most durable donor infrastructure treated a first-time candidate in a safe blue district as a threat worth a seven-figure response.
She did not arrive as a fringe insurgent with no organizational base. At the Colorado Democratic Party’s Denver County assembly in March, delegates gave Kiros sixty-seven percent of the vote to DeGette’s thirty-three, a margin so lopsided it nearly kept the sitting congresswoman off the primary ballot entirely. Bernie Sanders endorsed her. So did the Democratic Socialists of America and Justice Democrats, the same network that has spent the past two cycles hunting for exactly this kind of race: an incumbent whose progressive voting record obscures a donor list that tells a different story. DeGette had cosponsored Medicare for All. She sat on the House Energy and Commerce Committee. She had, by any conventional accounting, a left-leaning record. None of it mattered once Kiros made the case that DeGette’s inaction on the party’s own stated priorities, from single-payer healthcare to the pharmaceutical lobby’s grip on drug pricing, traced back to who had funded her for three decades.
The mechanism is worth naming precisely because it was built to be hard to name. AIPAC’s United Democracy Project, the super PAC that has spent at least $34 million this election cycle nationally, sent money to a group called EDW Action Fund, the independent-expenditure arm of Elect Democratic Women, a member PAC chaired since 2018 by Florida Representative Lois Frankel. Frankel quit the Congressional Progressive Caucus in November 2023 over the caucus’s criticism of Israel’s assault on Gaza and was among the small handful of CPC members who voted to censure Rashida Tlaib for a single phrase. Her EDW Action Fund has become one of AIPAC’s preferred vehicles for exactly this kind of race, and in Colorado it received $350,000 from United Democracy Project on May 1st and another $400,000 on May 20th, a total of $750,000 in a single month that accounted for roughly a third of everything EDW Action had raised since January.
EDW Action then moved the money again. Three transfers, on May 21st, May 22nd, and May 29th, totaling $876,000, went to a newly formed hybrid PAC called Pro-Choice Majority Action, registered as a legal affiliate of EDW just weeks earlier, on May 1st. Pro-Choice Majority Action became the single largest outside spender in the entire race, dropping roughly $1.5 million on television and digital advertising to defend DeGette and brand Kiros as antisemitic. A DMFI PAC, another pro-Israel organization, added $37,750 to EDW Action’s coffers in April for good measure. None of the resulting ads mentioned AIPAC. They mentioned abortion rights, women’s leadership, and the danger of an “extreme agenda.”
The maneuver has a second layer of protection built into federal law, and it is the kind of detail that separates a mechanism from an accusation. Any funding EDW Action or Pro-Choice Majority raised after June 1st was not required to be disclosed until July 1st, one day after Colorado’s primary. The final and largest tranche of AIPAC-linked spending in the race, in other words, was legally shielded from voters until it no longer mattered whether they saw it.
Two more pop-up committees rounded out the field defending DeGette. Mile High Accountability Project, formed April 29th and registered to Denver campaign-finance attorney Scott Martinez, spent $485,000 without disclosing a single donor; its only listed funder is a Denver nonprofit that does not disclose its own donors either, a structure the Colorado Sun flatly called dark money. Project 218, tied to the opposition-research group American Bridge 21st Century, spent roughly $400,000 attacking Kiros with claims her campaign called invented outright, including that she supported abolishing NATO and defunding the police, positions she had never taken and that her campaign said were lifted wholesale from the national Democratic Socialists of America platform rather than anything she herself had said. Between the three PACs, DeGette’s defense spent well over $2 million in the campaign’s final weeks alone, on top of whatever came earlier.
Kiros did not run unfunded against this network. Justice Democrats’ super PAC put roughly $500,000 behind her, and in the race’s final week a six-month-old organization called American Priorities spent $150,000 on television time to close the gap. American Priorities has become this cycle’s closest thing the party’s left has to an answer to AIPAC’s financial architecture, having already helped two democratic socialists win New York primaries a week earlier and spending at least $5.6 million nationally to boost candidates critical of Israel and of AIPAC’s role in Democratic primaries specifically. Its top donors, at $1 million each, are two men about whom almost nothing public exists beyond an FEC filing: Omer Hassan, and Mohammad Waqas Javed, who lists himself as a New York City resident and the chief executive of a company called Showcase Commerce.
The symmetry is not comfortable, and it should not be. A progressive movement that has spent a decade denouncing dark money as the disease afflicting American democracy is now depending on a structurally identical instrument to survive contact with AIPAC’s spending advantage, which still outweighs American Priorities six to one nationally. AIPAC’s spokesman, asked by CNN whether his organization’s opponents were affecting its strategy, answered only that United Democracy Project makes its own independent decisions based on each race, and that the same scrutiny applied to his group should apply to what he called anti-Israel dark money as well. He is not wrong that the scrutiny should be symmetrical. He did not explain why AIPAC needed three layers of intermediary organizations to spend in a district where its own name would have been a liability.
DeGette did not run as a backbencher with nothing to protect. She sat as ranking member of the Energy and Commerce Subcommittee on Energy, Climate, and Grid Security, and Democratic leadership had spent months treating her seat as a down payment on a future gavel if the party retook the House in November. House Democratic Leader Hakeem Jeffries told reporters two days before the vote that DeGette had built an extraordinary career in the chamber and was forcefully making her case, the kind of institutional endorsement leadership reserves for members it does not want to lose. Former Congressional Progressive Caucus chair Pramila Jayapal added her name late in the race, and DeGette leaned on the co-chairs of the caucus’s own PAC to vouch for her progressive standing against a challenger the caucus establishment viewed as unpredictable.
None of it moved the outcome, and the reason is structural rather than personal. Seniority in the House Democratic caucus converts into institutional power only if the party retakes the majority, a proposition voters in a safe Denver seat had no reason to weigh against the more immediate question of what three decades of incumbency had actually produced for them. Kiros’ own coalition, beyond Sanders and the DSA, included California Representative Ro Khanna, the Colorado Working Families Party, the Sunrise Movement, and Track AIPAC, an organization built specifically to map the lobby’s spending across House primaries and hand the resulting data to challengers like her. Whatever seat Kiros takes in January, it arrives without the seniority DeGette spent thirty years accumulating and without, on the evidence of this race, much appetite among Denver’s Democratic primary electorate for spending another three decades waiting for it to matter.
Kiros’ win landed exactly one week after two Democratic Socialists of America-aligned candidates unseated incumbents in New York City primaries, and a third won an open race to succeed a retiring member. Darializa Avila Chevalier, thirty-two, narrowly defeated five-term incumbent Adriano Espaillat, seventy-one, the sitting chair of the Congressional Hispanic Caucus. State Assemblymember Claire Valdez won the open seat vacated by Nydia Velázquez. Both were endorsed by New York Mayor Zohran Mamdani, whose own primary victory a year earlier had, by nearly every account since, kick-started the current wave. A month before that, Pennsylvania state representative Chris Rabb won a Philadelphia-area primary despite a million dollars in spending against him from AIPAC’s United Democracy Project. DeGette became the seventh sitting House Democrat to lose renomination this cycle, and the third in seven days.
New Jersey Representative Josh Gottheimer, a moderate Democrat, offered the establishment’s verdict on the wave to reporters after the New York results: a new cohort of democratic socialists, he said, are not commonsense Democrats interested in solving problems, and are interested instead, in his words, in throwing bombs. It is a useful sentence, because it tells you what the incumbent wing of the party has decided the actual disagreement is about. Not policy. Kiros and DeGette agreed on Medicare for All and on abolishing Immigration and Customs Enforcement; a voter comparing their platforms side by side would have found almost no daylight. The disagreement Gottheimer is naming is about donors, about whether a member of Congress is willing to spend political capital on the priorities their own party claims to hold, and about whether Israel policy in particular remains a subject a Democratic primary candidate can criticize without triggering a seven-figure response from committees that will not put their own name on the ad buy.
The clearest illustration of how that response gets manufactured came in a single exchange with Denver’s 9News, in which Kiros was asked to characterize the 2025 firebombing attack on a Boulder rally supporting Israeli hostages as antisemitic. She declined to render that verdict, saying she did not know what was in the perpetrator’s heart and knew only that he had attacked innocent people. It was, on its face, a refusal to speculate about motive rather than a refusal to condemn an act of violence, and DeGette’s campaign turned it into the spine of its closing argument anyway, running ads that stripped away the distinction entirely.
The attack did not work the way it was designed to. Younger Denver voters, more likely than their parents to sympathize with Palestinians and to view continued American military support for Israel’s operations in Gaza and Lebanon with open skepticism, appear to have read DeGette’s closing message as confirmation of the very disconnect Kiros had been arguing all along. The week before Colorado voted, a United Nations report had accused Israeli security forces of deliberately killing Palestinian children in operations the report characterized as genocide. A banner reading “Jews say no to genocide in our name,” hung by the nonprofit Jewish Voice for Peace, flew over Kiros’ own watch party on primary night, a detail that undercuts, by itself, the premise that criticism of Israeli state conduct and support from Jewish constituents are mutually exclusive positions.
The lineup at a Kiros rally the same week made the same point without needing a banner. The scheduled speakers were a Turkish-American Muslim Twitch streamer, two Black congressmen, and a Latina state legislator, alongside a candidate who had emigrated as an infant from Tigray, Ethiopia. It is not the roster a campaign accused of harboring bigotry would ordinarily assemble, and the rally’s organizers moved it to the Colorado Capitol steps rather than bury the contrast.
NBC polling earlier this year found sixty percent of Democratic voters now hold a negative view of Israel, up from broad sympathy as recently as 2023, with half of independents registering the same shift. Congressional behavior on the underlying policy questions has moved by comparison not at all. That gap, between where the party’s voters have gone and where its funding infrastructure keeps its candidates anchored, is the same gap that produced Section 622 of the pending Intelligence Authorization Act, which would lock automatic intelligence-sharing with Israel into statute and require formal congressional notification before any president could suspend it, precisely the kind of executive discretion that let Joe Biden briefly pause intelligence sharing during the Gaza campaign in 2024. It is the same gap that explains why AIPAC’s spending arm needed three shell layers to operate in a Denver primary rather than simply cutting a check under its own name. A donor network that was popular in the districts it wanted to protect would not need Lois Frankel’s abortion-rights PAC as a laundering vehicle. It would advertise.
Denver’s 1st District will send a Democrat to Washington in November regardless of who won the primary; the seat has not gone Republican since Nixon’s first term, and Kiros will face a Republican opponent who works in construction accounting and stands no realistic chance. The result that matters happened on June 30th, not whatever happens in November. What it demonstrated is that a spending advantage north of six to one, deployed through a purpose-built pipeline of PACs with no public connection to the donor actually writing the checks, was not sufficient to save an incumbent once primary voters decided her seniority no longer purchased anything they valued.
What the mechanism exposed about itself is the part that does not resolve. AIPAC did not lose in Colorado because it ran out of money or strategy. It lost because the district it was trying to protect had already moved past the point where its money could be disguised well enough to work. The question the district’s own result cannot answer is which primary AIPAC tries the same maneuver in next, with a fourth layer of shell PACs this time, in a district that has not yet had the chance to notice.