Editorials: Blaming Gerrymandering Has Its Limits, as Pennsylvania Shows | Nate Cohn/New York Times
There is no question that Republicans have a huge advantage in the House. But there is a big debate about whether it’s because of partisan gerrymandering or because Democrats are gerrymandering themselves into urban, heavily Democratic districts. One reason the debate continues, despite a near consensus among political scientists, is because the “wasted votes” phenomenon is abstract and hard to illustrate. In a Sunday Review article in The Times, I argued that the Democratic problem was mainly because of the distribution of their voters, not because of partisan gerrymandering, but I didn’t have a chance to include one of my favorite illustrations of the Democratic problem: Pennsylvania. Pennsylvania is a state where Mr. Obama won by a clear margin but lost a majority of the state’s congressional districts. The state was heavily gerrymandered by Republicans, which lets them squeeze out a few extra districts. But the Republicans probably would have still had an advantage on a neutral map.

