The Supreme Court is clearing a legal block to cheaper TV ad time before the midterm elections, granting an emergency appeal from Republicans in a dispute over campaign ad prices. The justices paused a lower-court ruling favoring Democratic candidates who had argued for limiting cheaper ads to candidates. The Trump administration supported the emergency GOP appeal. The decision follows a June Supreme Court ruling that removed limits on how much parties can spend in coordination with candidates. The national GOP has a sizable cash advantage over Democrats and access to cheaper ad rates could sharpen that edge.