The suit says the administration's actions are costing thousands of jobs, threatening national security interests and causing a humanitarian catastrophe.

While Department of Government Efficiency head Elon Musk said he was working to "shut down" USAID, it wasn't clear whether the official position of President Donald Trump's administration was to shut it down or merge it into the U.

Trump's overhaul of the federal government now has its sights set on foreign aid from the U.S. Here's what we know and which jobs might be cut.

The Trump administration has said USAID is wasting money and needs to align with its policy priorities. Some of the agency's functions could be carried out by the State Department. On Monday, Secretary of State Marco Rubio accused USAID's leadership of "insubordination" and said he was now the agency's acting head.