President Joe Biden's administration has withdrawn approval of Michigan's Medicaid work requirements, dealing another blow to requirements that had been suspended by a federal judge last year. The rules governing the about 900,000 beneficiaries of the Healthy Michigan Plan, the state's Medicaid expansion program, were bound to cause confusion, unnecessary benefit losses, additional administrative work for the state and more paperwork for people trying to prove compliance, said Elizabeth Richter, acting administrator for the Centers for Medicare and Medicaid.