Fifteen states with Republican attorneys general have filed a federal lawsuit in North Dakota against the Biden administration to block a new rule allowing Deferred Action for Childhood Arrivals (DACA) recipients to access federally subsidized health insurance through the Affordable Care Act (ACA). The lawsuit asserts that the rule violates the 1996 welfare reform law and the ACA by expanding the definition of 'lawfully present' to include DACA recipients. Critics argue that this move would incentivize illegal immigration and impose financial burdens on states. The Biden administration defends the rule, stating it aligns with the ACA's goal to increase access to healthcare. The lawsuit underscores ongoing political tensions surrounding immigration policies and healthcare reform.