Anti-discrimination law
Oregon's biggest city is the second in the U.S. to extend nondiscrimination protections to nonreligious people.
The evangelical Christian artists claim a Phoenix anti-discrimination law would curtail their religious rights.
The Alliance Defending Freedom, which is best known for supporting a baker who refused to make a cake for a gay wedding, is representing the organization.
The anti-discrimination law had support from high-profile trans activists, including actress Laverne Cox.
