"The Supreme Court on Thursday threw out a ruling by a federal district court holding that a congressional district on the South Carolina coast was an unconstitutional racial gerrymander – that is, it sorted voters based primarily on their race. In an opinion by Justice Samuel Alito, the justices cleared the way for the state to use the map going forward. The 6-3 decision, with the justices divided on ideological lines, means that the disputed district will remain a safe seat for Republicans, who hold a 6-1 advantage in the state’s congressional delegation. More broadly, Thursday’s decision creates a high bar for plaintiffs in future racial gerrymandering cases to meet."