New York Attorney General Letitia James and Mayor Zohran Mamdani filed dual lawsuits Monday to block the Trump administration from enforcing a rule that would deny green cards to immigrants who depend on public benefits — because when the left can't win a vote, it sues.

The public charge rule dates back to the Immigration Act of 1882. The concept is simple and was uncontroversial for over a century: newcomers should be able to support themselves, not become a burden on the taxpayers who already live here. Trump's pending rule, set to take effect Friday, gives immigration officers discretion to consider whether visa or green card applicants use — or are likely to need — benefits like Medicaid, food stamps, or housing vouchers. For most of American history, that was the understood standard. Cash benefits were explicitly counted for generations.

James led a coalition of 22 states and Washington, D.C. in filing suit in Manhattan federal court. Mamdani's administration filed a separate suit with Chicago, Seattle, San Francisco, and other local governments. The legal arguments are familiar: DHS exceeded its authority, the rule is "arbitrary and capricious," and Congress never intended the public charge provision to be "weaponized" — their word — against immigrants using public assistance.

"Hardworking families should not be forced to go without the support they need because they fear asking for assistance will get them deported," James said in a statement. Mamdani echoed the talking point: "New Yorkers will be afraid to see a doctor or ask for help they are legally entitled to."

Notice the sleight of hand. The rule applies to people seeking green cards — legal applicants for permanent residency. Undocumented immigrants, as CNN reported, are already ineligible for public benefits. The question on the table is whether the United States should grant permanent status to people who cannot support themselves without taxpayer aid. That is not cruelty. That is the baseline expectation of every sovereign nation on earth.

The Guardian framed the story around the rule's expansion to include benefits applied for on behalf of U.S. citizen children in mixed-status families. That is the most sympathetic angle available, and the plaintiffs are leaning on it hard. But the rule doesn't deny citizen children their benefits. It asks whether the household seeking a green card is self-sustaining. That is a legitimate inquiry for any immigration system that answers to its own citizens first.

Follow the money. The states' filing argues they would lose billions in federal funding if immigrants disenroll from Medicaid and the Children's Health Insurance Program. That tells you everything about who this lawsuit actually serves: state budgets that have been inflated by federal transfers to non-citizen populations, and the political coalitions built around those spending streams.

Trump attempted a similar rule change in his first term. It was tied up in court for years until Biden reversed it in 2022. Now the same plaintiffs are back with the same arguments in front of the same kinds of judges. The Guardian noted this round's rule is "more expansive" than the first attempt because it does not specify which safety net programs should be considered, leaving more discretion to individual officers. That is the feature, not the bug — and it is well within the executive's authority to interpret a statute Congress wrote in 1882.

This is lawfare, plain and repeatable. James has made a career of suing Trump — over his charity, his business, his university, and now his immigration policy. Mamdani is carrying the baton at the city level. Neither has a legislative answer because the public doesn't support one. So they shop for a judge.

The question isn't whether this rule is compassionate. The question is who writes immigration law — the elected branches, or the plaintiffs' bar with a gavel.