“After all, what other political appointee has had to endure the kind of hate Holder has suffered? As a Mustached American, he has had to battle for his job against the haters from the start of his career,” the group writes.

Holder is at the center of one of a series of controversies for the Obama administration this week, including the revelation that the Justice Department obtained phone records for Associated Press employees. Holder testified before the House Judiciary Committee on Wednesday in the case.

The Institute, which says on its website that it aims to promote “the growth, care, and culture of the mustache,” concludes its open note by saying, “We at the American Mustache Institute call for an end to this obvious discrimination. There is indeed much to be done to clean up Washington. Let us not start with Eric HolderEric H. HolderDOJ warrant of Trump resistance site triggers alarm Venture capital firm sues ex-Uber CEO for fraud Justice Dept. to meet with journalism group on subpoena guidelines MORE’s ruggedly handsome face.”