Arizona
Southwestern US state; DOJ voter-data lawsuit dismissed here on 28 April 2026.
Last refreshed: 19 May 2026
Will the 9th Circuit Arizona dismissal unravel the DOJ's entire voter-data campaign?
Timeline for Arizona
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Data Centres: Boom and Backlash- Why was the DOJ voter data lawsuit against Arizona dismissed?
- A federal court dismissed the case on 28 April 2026, ruling the DOJ complaint failed to specify which statute authorised its voter-data demand — the same portable reasoning now being tested at the 9th Circuit.Source: Lowdown
- Does Arizona have a mail ballot grace period?
- Yes. Arizona is one of 14 states plus DC that allow mail ballots to be counted after Election Day if postmarked by it. This rule is under challenge in Watson v. RNC, with a Supreme Court ruling expected by June 2026.Source: Lowdown
- How many DOJ voter data cases have been dismissed so far?
- Six have been dismissed and one settled, leaving 23 active cases. Arizona's was the sixth dismissal, on 28 April 2026.Source: Lowdown
Background
Arizona became the sixth state to have its DOJ voter-data case dismissed on 28 April 2026, as a federal court ruled the government's complaint failed to specify which statute authorised the demand. The dismissal came as the 9th Circuit held oral argument in United States v. Oregon on 19 May — the first appellate test of whether the district-court reasoning holds at the circuit level. A ruling for Oregon would convert the logic into binding precedent, collapsing the remaining 23 active cases.
Arizona also sits among the 14 states plus DC operating mail-ballot grace periods under scrutiny in Watson v. RNC, where a Supreme Court decision is expected by end of June 2026. The state had a contested 2024 election cycle marked by disputes over mail-ballot procedures and certification deadlines, making it a test case for rule changes that could affect an estimated 1.3 million currently-counted military and overseas ballots nationally.
Arizona is a critical swing state for House control in 2026. Its congressional map and voting procedures sit at the intersection of the DOJ voter-data campaign, the mail-ballot grace-period litigation, and the post-Callais redistricting cycle that is reshaping district lines across the country.