The lawsuit was filed by America First Legal (AFL) on behalf of EZAZ.org and Yvonne Cahill, a naturalized U.S. citizen and registered voter. AFL was founded by Trump advisor Stephen Miller.

It argued that election officials were not following Arizona law, which requires proof of citizenship to vote in state and local elections. Counties must also run monthly checks to confirm the citizenship status of registered voters.

As part of the settlement, Arizona counties must now work with Department of Homeland Security (DHS) to verify the citizenship of voters who didn't provide documentation when registering.