The agency announced that U.S. postmaster general Louis DeJoy resigned effective Monday. He said earlier in the month that he asked Elon Musk’s government efficiency team for help with a variety of issues.

He appointed Deputy Postmaster Doug Tulino as his successor until the Board can name a permanent replacement.

DeJoy asked the Postal Service Board of Governors last month to start looking for his replacement.

At the time he wrote: “As you are aware, I worked tirelessly to lead 640,000 men and women of the Postal Service into an extraordinary transformation.”

“We served the American public through a pandemic unprecedented in history, a period of high prices and sensationalized politics.”

DeJoy assumed the leadership of the US Postal Service in summer 2020, during the first term of President Donald Trump. DeJoy was a Republican who had owned a logistics business before taking office. He was also the first postmaster-general in almost two decades to not be a career employee of the postal service.