Incumbent Rep. Greg Stanton won Arizona’s 4th Congressional District Democratic primary, fending off a challenge from progressive Kai Newkirk amid sharp ideological differences over Israel policy and corporate influence. Newkirk criticized Stanton for accepting corporate donations and for voting in support of the Laken Riley Act, while Stanton defended a record of foreign policy positions and immigration oversight that included backing pro-Israel alignment with AIPAC support. Newkirk, a Democratic Socialist, pressed for a more left-leaning agenda, but several endorsements were pulled from his campaign amid internal disputes and controversy surrounding allied supporters. The primary victory secures Stanton the Democratic nomination to face Republican Zuhdi Jasser in November, with early results showing him ahead and Decision Desk HQ projecting a decisive win. The race highlighted broader tensions within the party between its progressive wing and more centrist incumbents in blue districts.