Despite bipartisan agreement on a 5-year plan in both the Senate and the House of Representatives, Congress failed to reauthorize the Children’s Health Insurance Program (CHIP) in 2017, causing uncertainty and worry for families and state CHIP directors alike. There is a strong rationale for Congress to immediately reauthorize CHIP for five years or even longer given the strong evidence base that finds positive short- and long-term impacts associated with expansions of public health insurance coverage for children and given low federal costs that would be required.