Moderate Republicans may lose big in the Northeast, despite the fact that their party needs them more than ever. Some of this is due to demographic shifts, and the transformation of the GOP into a religious party based in the South. But part also is the disgraceful gerrymandering of seats around the country that keeps the polarization intact, fuels cynicism and apathy, and stymies genuine democracy. I wish some candidate would make gerry-mandering reform a central plank in his or her election campaign. Ronald Reagan named it as one of a handful of issues he wanted to campaign for after his presidency. But he never got the chance. Who will take up this part of the Reagan legacy?