WRITING a budget should be about imposing order. In America, it frequently causes chaos. By letting funding for the federal government lapse on January 20th, Congress demonstrated, again, how hard it is for it to approve spending. The disruption might be worth it if America’s budget showdowns led to better policy. But they do not. Budget-making does not bring income and outlays into line. It does not allow lawmakers much opportunity to weigh competing claims on resources. And it fails to m...