The Supreme Court appeared divided Wednesday in a case over whether states should be able to cut off Medicaid funding to Planned Parenthood, which comes amid a wider push from abortion opponents to defund the nation’s largest abortion provider.

Justices heard arguments in a closely watched case that could determine whether Medicaid patients have the right to sue if a state disqualifies a provider.

The U.S. Supreme Court on Wednesday will hear arguments on if states can ultimately remove Planned Parenthood from its Medicaid funding.