The U.S. Supreme Court on Monday let a court-ordered redrawing of congressional districts in Pennsylvania proceed, raising Democratic hopes that a revamped map might yield them several more seats this fall. Justice Samuel Alito, who handles emergency appeals from Pennsylvania, rejected the request from GOP legislative leaders and voters to put on hold an order from the state Supreme Court intended to produce new congressional districts in the coming two weeks. The Pennsylvania high court ruled last month that the current map of 18 districts violates the state constitution because it unfairly benefits Republicans.