The way forward is to face the reality of what the Republican Party has become and prioritize delivering results for the American people over gauzy, pundit-pleasing fantasies. Sure, invite Republicans to participate constructively in the legislative process, but take away their ability to scuttle it.

To this end, it is encouraging to see Mr. Biden shifting from his staunch opposition to reforming the filibuster, whose modern iteration is what has allowed Republicans to raise the bar for passing most bills in the Senate from the majority threshold the framers set to the current 60-vote supermajority.

Mr. Biden knows the risks of spending valuable time and energy chasing members of a party whose incentive structure precludes cooperation. In the summer of 2009, Democrats spent nearly a year pursuing the votes of Senate Republicans like Chuck Grassley on health care. Meanwhile, the Senate majority leader, Mitch McConnell, and his allies deployed every tool at their disposal to prevent Republicans like Mr. Grassley from working with Democrats, and succeeded.

The Republican Party is now an even more hopeless tangle of pathologies than it was back then.