Senate Republicans have unveiled a sweeping plan to overhaul the Medicaid program, with changes policy analysts warn could lead to even greater coverage losses and pain for hospital systems than the aggressive proposal passed by the House of Representatives last month.

Rep. Mike Lawler, a New York Republican, issued a stern warning to Senate Republicans earlier on Monday: Any changes to pare back the deal, he said, would cause the bill to collapse in the House.

Congress passing the controversial One Big Beautiful Bill Act could leave millions without insurance and lead to at least 16,000 annual preventable deaths, according to research published in Annals of Internal Medicine.