Labor Secretary Lori Chavez-DeRemer resigned from the Trump administration on Monday, according to White House spokesperson Steven Cheung, who announced she would be leaving to take a position in the private sector.

Chavez-DeRemer had been facing an investigation by the Labor Department's inspector general over potential misconduct allegations. The Guardian reported that the allegations included having an affair with a subordinate and drinking on the job, though other sources did not provide specific details about the nature of the investigation.

In announcing her departure, Cheung praised Chavez-DeRemer's tenure, stating she had "done a phenomenal job in her role by protecting American workers, enacting fair labor practices, and helping Americans gain additional skills to improve their lives."

Keith Sonderling has been named as the acting Labor Secretary following Chavez-DeRemer's departure, according to Fox News and CNBC reports.

Chavez-DeRemer becomes the third Cabinet member to leave their position during President Trump's second term. The Hill reported that her exit follows the departures of Department of Homeland Security Secretary Kristi Noem and Attorney General Pam Bondi, though it characterized those as firings rather than resignations.

Questions about Chavez-DeRemer's future in the administration had been circulating for weeks prior to Monday's announcement, according to The Hill's reporting.