The Wisconsin Supreme Court is hearing arguments over whether a legislative committee’s rejection of an agency rule that would ban the practice of “conversion therapy” for LGBTQ+ people was unconstitutional.

Marc Herstand has been on the forefront of a campaign to ban mental health professionals in Wisconsin from counseling clients with the goal of changing their sexual orientation or gender identity. “Conversion therapy” has been denounced by mainstream professional organizations for doctors,

The Wisconsin Supreme Court on Thursday heard a case that could settle years of disputes between Democratic Gov. Tony Evers’ administration and Republican lawmakers over whether to allow a discredited practice known as conversion therapy.