Rep. Maxine Waters (D-Calif.) flexed her political muscle Tuesday in response to Rep. Jeb Hensarling's announcement late Monday he would prohibit Consumer Financial Protection Bureau Director Richard Cordray from testifying before the House Financial Services Committee.

Waters is the committee's Ranking Member; Hensarling, a Texas Republican, chairs the committee.

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Waters disagreed that the D.C. Circuit Court's January ruling that President Barack Obama's National Labor Relations Board appointments were unconstitutional also invalidates Cordray's appointment.

“It is inappropriate and unwarranted to prematurely and unilaterally conclude that the … case warrants blocking Director Cordray from fulfilling his statutory obligation to testify before the Committee,” the California Democrat wrote to Hensarling in a letter on Tuesday.

Banning Cordray from testifying will impede congressional oversight of the CFPB, Waters said, and she urged Hensarling to reconsider his position and schedule a hearing to allow Cordray to deliver the CFPB's semi-annual congressional report.

“If you choose to continue to ignore the law, then I am prepared to use the rules of the committee to provide the director the opportunity to give testimony before the committee,” she wrote.