NOW, THEREFORE, I, DONALD J. TRUMP, President of the United States of America, by virtue of the authority vested in me by the Constitution and the laws of the United States, do hereby proclaim January 18, 2021, as the Martin Luther King, Jr., Federal Holiday. On this day, I encourage all Americans to recommit themselves to Dr. King’s dream by engaging in acts of service to others, to their community, and to our Nation.

https://www.whitehouse.gov/presidential-actions/proclamation-martin-luther-king-jr-federal-holiday-2021/