As potential Medicaid cuts loom over millions of Americans, parents of children with severe disabilities are trying to grapple with what life might look like without the healthcare program. “If we lose it, it will be utterly devastating,” said Lindsay Latham, of Springfield, Virginia. Her 10-year-old son Calvin has polymicrogyria, a rare brain malformation that affects his speech, his mobility, and the way he eats and drinks. He also has epilepsy.