This purity-over-progress approach isn’t just making life awkward for the speaker. It is making the entire Republican conference look like a pack of obstructionist zealots. This may play well in deep-MAGA districts, but not so much in battleground areas. Those are, admittedly, increasingly rare. But with a majority this scrawny, House conservatives are playing with fire. All Democrats need to do is flip a handful of seats to snatch the gavel from Mr. McCarthy’s hand. They could, say, claw back some of the ground unexpectedly lost to Republicans in New York in the midterms (starting with George Santos’s district). And they could pick up a seat or two thanks to the recent Supreme Court ruling on the Voting Rights Act that may lead to various Southern states redrawing their congressional districts to address sketchy gerrymandering. (Alabama has already been given its marching orders.)

Even if Republicans hold on to the House — where, to be fair, a certain level of crazy has come to be expected — the wingers’ shenanigans are doing nothing to help the party’s brand. Many, many Americans are weary of political chaos and performative jerkiness. And many are particular tired of it on the issue of abortion, which drew key numbers of swing voters to Democrats in last year’s midterms. But time and again, Mr. McCarthy’s troops seem dead set on signaling that the G.O.P. is a pack of bomb-throwing fringe-dwellers actively trying not to govern. Swing voters aren’t generally all that keen on posturing, do-nothing Congresses, either.

Some Republican House members are cheesed off over these political games. Nancy Mace of South Carolina, for instance, was overheard Thursday dropping all kinds of colorful language, including an “f” bomb or two, about people being forced to vote on the abortion amendment, according to Politico. Though Ms. Mace did not bother abbreviating her pejorative. Nor, it should be noted, did she risk voting against the offending amendment, much less the overall bill. “It’s not going to pass the Senate anyway; it doesn’t matter,” she told The Hill.

It doesn’t matter. Well, except that, going forward, Ms. Mace can expect the situation to get so much worse. However much blood and tears get shed in passing the N.D.A.A., they are nothing compared to the carnage anticipated in the coming cage match over funding the government. Already, the hard-liners have made clear that they are going to cause as much trouble as possible in pursuit of their outside-the-mainstream aims. In protest of the debt deal, a pack of conservatives ground action on the House floor to a halt for several days in June while lobbying (or, if you prefer, blackmailing) the speaker to give them more power — including more leeway to slash spending beyond the levels set in the debt-ceiling agreement. With the conservative knife at his throat, Mr. McCarthy has been allowing the conference to move ahead with appropriations proposals that do just that.