The US Supreme Court on Monday agreed to hear a challenge to a Colorado law that bans so-called conversion therapy. The justices agreed they will hear the case after a therapist from Colorado brought an appeal, arguing the state's restictions violate her free speech rights guaranteed under the US Constitution's first amendment.

The Supreme Court on Monday said it would review a Colorado law that bars mental health professionals from practicing “conversion therapy” for minors, a discredited practice that attempts to change a person’s sexual orientation or gender identity.

Colorado is among roughly half the states that prohibit the practice of trying to change a person’s sexual orientation or gender identity through counseling.