Pat Meehan

Open or contorted US House districts may see biggest changes

Pennsylvania's high court last month became the first state court to throw out a congressional map because of partisan gerrymandering, a decision that has ignited a scramble to redraw district boundaries as dozens of candidates watch and wait.

Now, the boundaries for Pennsylvania's 18 congressional districts for May's primary election are up in the air.

Districts in which there is a retiring incumbent and particularly contorted boundaries could see the biggest changes. Meanwhile, boundaries drawn by Republicans after the 2010 census to favor Republicans are expected to become less GOP-friendly, giving Democrats nationally a boost in their quest to take control of the U.S....