A Pennsylvania judge today launched a review of competing proposals to redraw the boundaries of the state’s congressional districts, the morning after Gov. Tom Wolf vetoed a plan sent to him by Republican lawmakers. Commonwealth Court Judge Patricia McCullough warned the parties the hearing could go into the weekend, reflecting the pressure to draw new boundaries for 17 congressional districts in time for the May 17 primary election. With gridlock in the statehouse, McCullough has to consider at least a dozen different proposed maps that must account for demographic shifts over the past decade in the politically divided state.