New York Democrats’ hyperpartisan gerrymandering violated the state Constitution, which voters amended eight years ago to establish a bipartisan redistricting commission — specifically prohibiting line-drawing that discourages competition or gives one party an advantage. But correct as last week’s state high court ruling striking down those lines is, it doesn’t solve a growing national problem. In fact, it exacerbates it, since extreme gerrymandering is now happening asymmetrically across the U.S., with Republican-controlled legislatures and governors going to town to maximize their leverage b…
