Secretary of State Marco Rubio announced Monday that he is acting administrator of the US Agency for International Development, confirming the de-facto takeover of the humanitarian agency by the State Department, Report informs via CNN.

Rubio said in a letter to lawmakers Monday he had delegated the authority of acting administrator to Pete Marocco, a Trump appointee who served at USAID in the president’s first term and has been accused by aid groups and officials of intentionally dismantling the organization.

Marocco, who is also serving as the State Department’s head of foreign assistance, drafted the directive to freeze almost all foreign aid. One aid official said that Marocco “knows how the system works and is dismantling it at every turn.”

The news came hours after Elon Musk, the world’s richest man charged with overhauling the federal government, said President Donald Trump had signed off on shutting the agency down. Democrats say that it is not legal for the president to shutter a federal agency without consulting Congress.

Rubio, in a letter to the heads of Congress’ committees on foreign affairs and appropriations Monday, said he had authorized Marocco “to begin the process of engaging in a review and potential reorganization of USAID’s activities to maximize efficiency and align operations with the national interest.”