Medicaid and CHIP route federal dollars through a shared funding structure that gives states broad coverage authority, subject to federal contribution rules. The Trump administration has applied those rules to exclude gender-affirming care for children: federal funds in both programs will no longer cover those treatments. States retain the option to cover the care themselves.
How the funding structure creates the stakes
Medicaid and CHIP operate as federal-state programs. Washington sets the rules for what federal dollars can reimburse; states administer plans and set their own covered service lists. The constraint in both programs is the federal reimbursable category: services Washington includes receive federal cost support, and services it excludes, states fund alone or not at all. The Trump administration has placed gender-affirming care for children outside that category. Any state that wants to keep those treatments available through Medicaid or CHIP would need to finance them from state appropriations.
What the policy does not prohibit
The administration's action targets the federal payment stream. It does not establish a federal clinical ban on gender-affirming care for children. States are free to cover the treatments. The shift is financial: any state that maintains coverage pays the full cost with no federal offset.