Whether a federal court should decide an uncertain question of Texas law concerning the Railroad Commission's authority before reaching the federal constitutional challenges.
Holding
No. The federal court should refrain from deciding the unsettled state-law question and allow Texas courts to give an authoritative construction of the Commission's statutory authority.
Reasoning
The Commission relied on a Texas statute authorizing it to regulate railroads, correct abuses, and prevent unjust discrimination. But it was unclear whether those broad terms gave the Commission power to regulate the staffing of Pullman sleeping cars. Federal judges, even experienced ones, could only forecast how Texas courts would interpret the statute; the Supreme Court of Texas had the final word on Texas law.
A definitive state-court ruling that the Commission lacked statutory authority would end the dispute without any need to decide the federal constitutional claims. Because the porters' Equal Protection claim raised a sensitive question of racial discrimination, the Court stressed that federal courts should avoid constitutional adjudication when a nonconstitutional ground may resolve the case.
Texas provided practical routes to obtain a conclusive state-law ruling, including statutory review of the Commission's order in state court and an enforcement proceeding by the State. Nothing in the record showed that pursuing those routes would prevent full preservation and later adjudication of the parties' federal constitutional claims.