Millions of U.S. residents are poised to lose Medicaid health insurance as protections put in place at the start of the COVID-19 pandemic begin to lapse. Under a bipartisan deal reached by Congress late last year, states are allowed to remove Medicaid recipients from the rolls as early as April 1 unless they prove they still qualify. Some residents of five states — Arizona, Arkansas, Idaho, New Hampshire and South Dakota — have already been kicked off Medicaid, part of what the Biden administration estimates will ultimately be 15 million people losing benefits, including millions of children.