To the Editor:

Re “Attacks on Mueller and F.B.I. Open a Rift in the Party of Law and Order” (news article, Dec. 30):

As a member of the House Oversight and Government Reform Committee, I would like to address claims about the supposed bias at the F.B.I.

I questioned the deputy F.B.I. director, Andrew McCabe, in a closed committee session. While the discussion was confidential, I can assure you that the men and women at the bureau are dedicated public servants committed to defending the American people and upholding the law.

Firing the special counsel, Robert Mueller, would cross a line that congressional leaders in both parties have made clear. Instead, the president’s team is attacking the credibility of Mr. Mueller and the F.B.I. in what appears to be an attempt to sow doubt about Mr. Mueller’s eventual findings.

These attacks are beyond the scope of normal political dialogue and raise a profound question: What is the president’s team afraid of?