To the Editor:

Re “19 Questions We Have for Mueller Ahead of His Testimony Before Congress” (nytimes.com, July 22):

Dear Mr. Mueller:

Regarding your appearance before two House committees on Wednesday, I understand your reluctance to expand upon your detailed report as special counsel investigating Russian interference in the 2016 election and possible efforts to impede that investigation. You are, however, in the unenviable position of possessing information and perspective as to the fitness for office of the occupant of the White House.

Some of your former colleag ues in law enforcement have spoken out expressing their view that the president’s comportment in office is unacceptable and that his actions continue to undermine the rule of law. The president’s most recent action inciting racial division and denigrating the First Amendment rights of even elected officials is a case in point.

Unlike your former colleagues, you have the benefit of hours of testimony and investigation to inform your judgment. Doubtless all of your instincts as a dedicated public servant push you to stay in your lane and refrain from voicing any but the most narrowly defined facts. But as one of the many who see our country at risk and its citizens divided, I suggest that you have one last important duty that may end up being your most significant contribution to public life.

This is to speak plainly — not in redacted form or legalese — to the members of Congress who will be questioning you.