John Gastil in Monkey Cage thinks The Republicans’ big gerrymander could backfire in a major way
After the 2010 Census, the Republican Party put in motion its plan to redraw congressional districts more favorable to conservative candidates. Whereas bipartisan gerrymandering creates safe districts for both parties, the GOP undertook partisan gerrymandering, which packs the other party’s voters into as few districts as possible and spreads out the gerrymandering party’s voters across many districts, each of which that party can win but often by uncomfortably narrow margins.
If the Trump collapse and Clinton surge continue, they could reveal the perils of partisan redistricting. That strategy created so many marginal Republican districts that if the GOP loses the bulk of the seats at or below R+2, it would also lose its congressional majority. A catastrophe that claimed every GOP seat at or below R+4 would bring the GOP caucus close to the size of today’s House Democrats.