Top criminal prosecutor in U.S. Attorney's Office in D.C. resigns

Washington — The head of the criminal division in the U.S. Attorney's Office in Washington, D.C, has resigned her post, the latest in a string of Justice Department officials to leave under the Trump administration.

In an email obtained by CBS News, Denise Cheung notified her colleagues Tuesday morning that she is stepping down. "I took an oath of office to support and defend the Constitution and I have executed this duty faithfully during my tenure, which has spanned through numerous Administrations," the email said.

Cheung did not specify a reason for her departure in her email.