The U.S. Supreme Court agreed on Monday to hear a Christian therapist's challenge on free speech grounds to a Democratic-backed Colorado law banning "conversion therapy" intended to change a minor's sexual orientation or gender identity.

The U.S. Supreme Court's decision on Monday to accept an appeal out of Colorado questioning the constitutionality of a law restricting "conversion therapy" for minors turns the spotlight toward two relatively new federal judges who previously sided with the state.