In a blow to Republicans ahead of the 2018 midterms, the U.S. Supreme Court on Monday rejected a challenge to Pennsylvania's newly drawn congressional map.
In January, the state Supreme Court ruled that the map drawn by Republicans in 2011 was gerrymandered and violated Pennsylvania's constitution, and last month, it voted 4-3 to approve a new congressional map that is less favorable to the GOP. Under the old map, Republicans regularly won 13 of the 18 districts, but with the new boundaries, Democrats are likely to pick up three or four seats.