Tennessee Senate Majority Leader Jack Johnson is hopeful the Supreme Court will uphold the ban he helped write on transgender surgeries and hormone treatments for minors.

The Supreme Court will hear arguments Wednesday in a lawsuit challenging Tennessee’s ban on gender-affirming medical care for minors, a landmark case whose outcome could have wide-reaching implications for the future of transgender health care in the U.

The Supreme Court on Wednesday will consider the constitutionality of a Tennessee law that prohibits gender-affirming care for minors experiencing gender dysphoria.