They’re drawing the line. While activists nationwide fight for fairer allotment of legislative districts, the Keystone State actually has a chance of shifting the job of redistricting from politicians to an independent panel — thanks to a partisan impasse. Democrats control Pennsylvania’s supreme court, and thus the advantage in crafting state legislative districts, but a Republican majority in the legislature draws federal congressional districts. Both sides hold powerful cards, setting the stage for a grand bargain to be struck. If it is, Pennsylvania could be the first gerrymandering domino to fall.