A senior adviser to Secretary of State Mike Pompeo Michael (Mike) Richard PompeoWatchdog confirms State Dept. canceled award for journalist who criticized Trump Trump's push for win with Sudan amps up pressure on Congress Putin nominated for Nobel Peace Prize MORE has resigned from his position as the State Department faces lowering morale amid the Ukraine scandal, according to a new report.

Michael McKinley, a career diplomat who has held posts including ambassador to Afghanistan, Colombia and Peru, has stepped down, The Washington Post reported Thursday.

Pompeo was reportedly expected to announce the departure in a statement on Friday.

The Hill has reached out to the State Department for comment. McKinley declined the Post's request for comment.

McKinley was serving as ambassador to Brazil last year before becoming a policy adviser to Pompeo, the Post reported. He has reportedly been involved on administration policy in Venezuela, Mexico, Southeast Asia and Afghanistan.

ADVERTISEMENT

The newspaper reported that McKinley and others were disappointed in Pompeo's lack of public support for diplomats who have been asked to testify before the House as part of an impeachment inquiry into President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

The paper noted that there has been particular concern for former ambassador to Ukraine Marie Yovanovitch, who was dismissed earlier this year and is slated to testify on Friday.

A whistleblower complaint that is central to the impeachment inquiry alleged that her dismissal was due to allegations made by a former top Ukrainian prosecutor that the State Department later called "an outright fabrication."

The Associated Press reported Thursday that Yovanovitch was dismissed after she insisted that Trump lawyer Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE's requests for investigations go through official channels.