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Greg Stanton Beat a Progressive Challenge by 25 Points—But Arizona’s Israel Fight Isn’t Over
Kai Newkirk built his campaign around a theory gaining ground on the Democratic left: voters are increasingly angry over U.S. support for Israel, suspicious of AIPAC’s influence and ready to punish incumbents who refuse to break with Washington’s traditional approach.
In Arizona’s 4th Congressional District, that theory met Greg Stanton.
Stanton won comfortably.
The four-term congressman defeated Newkirk in the July 21 Democratic primary by roughly 62% to 38%, a margin of about 25 points. Early election-night returns had shown Stanton ahead 68.1% to 31.9%, but the gap narrowed as more ballots were counted.
It was still decisive.
For Democrats trying to understand where their party is moving on Israel, the result is worth watching. It is also easy to overread.
Newkirk made Israel one of the defining issues of the race. He called for ending U.S. military aid, backed an arms embargo and repeatedly attacked Stanton over support from AIPAC and other pro-Israel donors.
But Arizona Democrats were not voting on Israel alone.
They were choosing between a former Phoenix mayor with years of local political relationships and a challenger who entered the race with far less money, weaker name recognition and a campaign that ran into trouble late.
Stanton’s victory says something about the limits of an insurgent strategy. It does not mean the argument over Israel inside the Democratic Party has gone away.
Stanton has consistently supported Israel’s security and opposed efforts to abruptly cut military assistance. Shortly before the primary, he voted against an amendment from Republican Rep. Thomas Massie that would have reduced U.S. military aid to Israel.
Newkirk seized on the vote.
He argued that Stanton’s position reflected the influence of AIPAC and pro-Israel money in American politics. Track AIPAC, an advocacy group that monitors such spending, has attributed roughly $322,000 in donations linked to AIPAC and other pro-Israel groups to Stanton over time.
That figure needs context. It includes a broader network of money categorized by the group as pro-Israel; it should not be read as a single direct payment from AIPAC itself.
Still, Newkirk believed the connection gave him an opening.
Across the country, Democratic voters have grown more critical of Israel’s conduct in Gaza, and several candidates running to the left of party leaders have turned that frustration into primary victories.
Newkirk hoped Arizona would be next.
His case against Stanton went beyond Israel. He portrayed the incumbent as a conventional, corporate Democrat too comfortable with donors and too cautious for a party facing a more confrontational political era.
He campaigned as a democratic socialist and won support from Our Revolution, Progressive Democrats of America and Track AIPAC. Cenk Uygur, founder of The Young Turks, also endorsed him.
But the race never developed into the kind of incumbent panic progressive challengers have created elsewhere.
Money was one reason.
By early July, Stanton had raised more than $2 million for the cycle. Newkirk had raised only a fraction of that.
Incumbency was another.
Stanton had spent years building relationships across Phoenix, Tempe, Mesa and Chandler, first through local politics and later in Congress. Before winning a House seat in 2018, he served as mayor of Phoenix.
His coalition was also broader than Newkirk’s portrayal of him as an AIPAC-backed centrist.
Labor groups supported Stanton. Reproductive-rights organizations supported him. Environmental and education groups backed him. Rep. Adelita Grijalva, one of Arizona’s more progressive Democratic voices, endorsed him as well.
Then Newkirk’s campaign hit a problem of its own.
Less than two weeks before the election, the Young Democrats of Arizona withdrew its endorsement.
The organization said it had learned of “concerning patterns of behavior” involving Newkirk but did not publicly provide details.
Newkirk denied wrongdoing and described the move as part of a smear campaign based on false or disavowed information.
Without public specifics, voters were left with an accusation and a denial.
For a challenger already asking Democrats to replace an incumbent, losing a prominent youth endorsement in the closing stretch was hardly helpful.
Still, treating Stanton’s victory as proof that Democratic voters rejected criticism of Israel would miss an important part of the campaign.
Stanton himself has become more outspoken about Israeli policy.
He has criticized Prime Minister Benjamin Netanyahu and condemned extremist settler violence in the West Bank, calling attacks on Palestinian civilians acts of terrorism.
He has also suggested that the U.S.-Israel security relationship should be reconsidered as the current 10-year memorandum of understanding approaches its 2028 expiration.
That is not the position Newkirk wanted.
It is also not the language Democrats commonly heard from pro-Israel incumbents a decade ago.
The center of the party is moving, even when incumbents survive.
That distinction matters because Democratic primaries around the country are producing mixed results rather than one clean ideological trend.
In some districts, progressive challengers have knocked off establishment-backed candidates.
In others, incumbents such as Stanton and Missouri Rep. Wesley Bell have beaten opponents running to their left.
Local political culture, candidate quality, fundraising, demographics and incumbency still matter.
Israel matters too, but rarely by itself.
Arizona’s 4th District was an especially difficult place to prove otherwise.
The district has a Cook Partisan Voting Index of D+4 and is currently rated Solid Democratic by major nonpartisan election analysts. Stanton won reelection in 2024 by a narrower margin than Democrats once enjoyed in the area, but he remains favored heading into November.
His Republican opponent will be Zuhdi Jasser, a physician and longtime critic of political Islam who ran unopposed in the GOP primary.
That matchup will force Stanton to make a different calculation.
In the primary, pressure came from his left. In November, it will come from his right.
Stanton will need to keep progressive voters who just spent months hearing that he was too close to AIPAC while holding the suburban and moderate voters who make the district work for Democrats.
That balancing act is becoming familiar across the party.
Democratic politicians are confronting a base that has moved sharply on Israel while competing in general elections where the electorate is broader and often less ideological.
Moving too slowly risks a primary challenge.
Moving too far risks giving Republicans an opening.
Stanton’s answer has been to defend the U.S.-Israel relationship while criticizing Netanyahu and specific Israeli policies.
Newkirk argued that was no longer enough.
Arizona Democratic voters sided with Stanton.
For now.
The result should give Democratic incumbents some reassurance. A challenger cannot simply attach AIPAC to an opponent’s name, make Gaza the center of the campaign and assume the national mood will do the rest.
Organization still matters. Money matters. Local trust matters. So does the candidate.
But Stanton would also be making a mistake if he treated his win as permission to ignore the political shift underneath the race.
Newkirk still won well over a third of Democratic primary voters despite being badly outspent, far less established and hit by damaging controversy in the final weeks.
Those voters remain part of the Democratic coalition.
They will continue pushing candidates over Gaza, military aid and the influence of pro-Israel groups in party politics. They may find stronger challengers in other districts.
Stanton won the primary decisively.
What he did not win was an end to the debate that produced the challenge in the first place.
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Arizona Democrats chose the incumbent.
The next question is whether the incumbent changes after seeing who voted against him.
