WASHINGTON (AP) — President Barack Obama has tapped Wal-Mart’s Sylvia Mathews Burwell as his next budget chief, thrusting her into the center of Washington’s heated partisan budget battles and is filling vacancies at the Energy Department and Environmental Protection Agency, an official says.

A White House official said Obama will announce Burwell’s nomination to lead the Office of Management and Budget during a White House ceremony Monday morning, a White House official said. If confirmed by the Senate, Burwell would bring more diversity to Obama’s second term Cabinet following criticism that many top jobs were going to white men.