Republican legislative leaders are in a bind. While they appear to have failed for now in their goal of destroying the Affordable Care Act, their eagerness to shower tax breaks on the wealthy at the expense of health coverage for millions of Americans has crimped their ability to pass other fiscal legislation.

This is not a lament. It’s just as well that they haven’t done anything big, given their goals. But it is a stunning demonstration of incompetence that, with control of the House, the Senate and the White House for six months, Republicans have not only failed to enact any major bills but have also created a legislative logjam that is bound to get worse.

This is largely because congressional leaders have tried to overcome solid Democratic opposition by using “reconciliation” rules — which prevent a Senate filibuster when applied to certain legislation on revenue, spending or the debt limit. But until the health care reconciliation measure is either passed or abandoned, they cannot use those rules to pass other legislation, like broad tax cuts for the wealthy that are a key element of their agenda.

With Senators Mike Lee of Utah and Jerry Moran of Kansas announcing their opposition to the health bill on Monday night, and with only two weeks before the summer break, passage of a bill that some Republicans believe would cut coverage too deeply and others believe would not cut taxes or benefits enough seemed doomed.