In a major win for Democrats, the Supreme Court won’t block new congressional district maps in Pennsylvania. The Supreme Court refused Monday to block the redrawing of Pennsylvania's congressional districts, handing Republican leaders a stinging defeat and giving Democrats a chance to make important gains at the polls in November. The high court's action completed a one-two punch against the GOP-dominated state legislature. Last month, the justices refused to block a state Supreme Court decision that declared districts drawn by Republicans unconstitutional because of their partisan tilt. Ref. USAToday.