The U.S. Chamber of Commerce said Monday that an attempt to oust Mick Mulvaney as acting director of the Consumer Financial Protection Bureau would raise "grave questions" about the constitutionality of the consumer agency.

The Chamber wrote in an amicus brief that CFPB Deputy Director Leandra English's legal effort to have Mulvaney removed from his job running the bureau would represent "an unprecedented limitation" on the president's constitutional authority to appoint and remove the heads of federal agencies.

Mulvaney was named acting director of the CFPB by President Donald Trump on Nov. 24, just hours after former CFPB Director Richard Codray had tapped English to lead the agency on an interim basis. English has claimed she is the rightful head of the CFPB in the absence of a Senate-confirmed director.

Read more in American Banker.