Whether the Supreme Court had jurisdiction to review the Texas Supreme Court’s decision.
Holding
Yes. The Texas decision presented a final federal question, and no independent and adequate state ground barred review.
Reasoning
The Texas Supreme Court had invalidated the existing districting arrangement, but it also expressly held that neither the Texas nor Federal Constitution required population to be the sole basis for the new districts. That ruling rejected the petitioner’s federal claim for population equality and therefore was not insulated from review by an independent state-law ground.
The judgment was sufficiently final because the Texas Supreme Court contemplated no further proceedings in Texas courts. Although the Commissioners Court still had to create a new plan, the legal rule governing that redistricting—whether population had to control—was conclusively decided.