Federal appellate judges probed the scope of a recent U.S. Supreme Court ruling during arguments Friday in a challenge to a Louisville anti-discrimination ordinance brought by a Christian photographer opposed to shooting same-sex weddings.

In 303 Creative v. Elenis, the high court's conservative majority ruled for a Denver website designer who refused to make wedding websites for LGBTQ couples, finding that compelling her to do so would violate her First Amendment rights because her business provides "expressive" services that involve "pure speech."