A new investigation by ProPublica has found the Trump administration is advancing a proposed rule change to SSI, the Supplemental Security Income program, that could slash or terminate benefits for an estimated 400,000 disabled adults, including people with Down syndrome and dementia. The proposal specifically targets people with disabilities living with their parents or family members who receive food assistance through SNAP, the Supplemental Nutrition Assistance Program. The efforts were initiated last year by top White House officials and the so-called — and now defunct — Department of Government Efficiency, DOGE, led by billionaire Elon Musk.