The purpose of this legislation is to make immediate changes to Medicaid regarding the eligibility of certain non-citizens, specifically illegal aliens, and to adjust federal funding for states that provide healthcare to these individuals. The bill aims to tighten the rules around who can receive Medicaid benefits and how states are compensated for providing care to non-qualified aliens. One of the key provisions of the bill is the change in the effective date for Medicaid eligibility for non-citizens.