We’ve covered this before, but here’s a concise statement of the facts:
House Democratic candidates won about 50.5 percent of the national vote in November, but took just 46 percent of the seats. In the last 40 years, only one other time — 1996 — did the party that won the majority of the votes end up with a minority of the House, said Nicholas Goedert, a political science researcher at Washington University in St. Louis in Missouri. Democrats actually gained two seats in the Senate.
Political scientists point to two factors influencing this divergence: a redistricting process dominated by Republican legislatures, and even more so, the concentration of Democratic voters in urban enclaves.
Gerrymandering did matter. In nine states redistricted by Republicans, the Democratic vote share was well above the percentage of seats won […]
Republican rhetoric might not indicate that they see the demographic tidal wave coming, but Republican actions speak loud and clear. They know they’re going to be in permanent minority status someday if they continue on the path they’re on, but they’ve kicked that can far down the road by dominating legislatures and governorships.