What We Can Do to Make American Politics Less Dysfunctional

The disarray engulfing the House of Representatives has been unprecedented, yet somehow it has also felt inevitable. No sitting speaker has ever been removed before, but the process that brought about Kevin McCarthy’s overthrow was the culmination of several related trends that have amounted to a repudiation of coalition building in American politics.

That process has been overdetermined in an era of partisan polarization and geographic sorting (Americans increasingly live in communities full of like-minded partisans), but that doesn’t mean we are powerless against it. The rules of our politics should be designed to counteract our worst vices, not to reinforce them. That means we particularly need to rethink party primaries — which give our politicians all the wrong incentives.

The upheaval in the House is rooted in the dynamics of an era of deadlock. American politics isn’t just polarized but nearly tied, and it has been that way for much of the past 30 years. The average House majority since 1995 has been just over 30 seats. The average over the previous century was more than 80 seats. The current Congress and the previous one, with their incredibly slim House majorities (first Democratic and then Republican), are rare in historical perspective.

Such narrow majorities empower the fringes of our politics. Only eight Republican members voted to remove their speaker, but when the majority’s margin is so small (and the minority party can be relied on to play its lock-step part), a tiny tail can wag the dog. Razor-thin majorities are inherently unstable, yet neither party seems capable of broadening its appeal and therefore its coalition.

Mr. McCarthy’s ouster was also a function of the centralization of power in Congress. The toppling of the speaker might suggest that House leaders are too weak, but partisan dissatisfaction with Mr. McCarthy had to do with the effectively impossible expectations members now have of party leaders. The members who rebelled against him claimed to want regular order in the House, but they also insisted that legislative outcomes must conform to strict partisan goals.

These are plainly contradictory demands: Regular order involves cross-partisan negotiation and bargaining and so would result in legislative outcomes that are more durable but less ideologically satisfying. In the end, the rebels revealed their real priorities. They kicked out the speaker for passing a continuing resolution with Democratic votes, putting their weight behind the notion that party leaders must tightly control the House and prevent cross-partisan coalitions from forming. The Democrats’ unanimity in supporting the speaker’s removal evinced the same view.