It must surely be a source of ongoing annoyance that Mick Mulvaney, the Trump administration’s director of the Office of Management and Budget, can’t successfully rename the other agency he heads.

Mulvaney wants it to be known that he serves as acting director of the Bureau of Consumer Financial Protection, a rebranded Consumer Financial Protection Bureau. The sign outside the Bureau’s Washington headquarters may reflect the change, but most who follow its efforts, including journalists and consumer activists, are sticking by the old nomenclature. An effort to get the Associated Press to modify references to the Bureau in its much-consulted stylebook, for example, was met with deaf ears. The Bureau’s own website similarly clings to both its CFPB.gov URL and prominent references to the CFPB name.