Musk doesn't need to be confirmed by the senate or anyone else. He is acting under orders from the President. For example, in the case of USAID:matthewfarmery wrote: ↑Mon, 3. Feb 25, 15:09 Again Observe, I don't know why you seem to be defending Musk, he was not appointed or confirmed by the senate.
Now, as to whether the President has the authority to shut down an agency, we will have to see if/how Congress responds. I'm guessing he does have the authority.In his announcement Monday that he was working to shut down USAID, Musk said that Trump supported the move.
“With regard to the USAID stuff, I went over it with him in detail, and he agreed that we should shut it down,” Musk said of the president. “I actually checked with him a few times [and] said, ‘Are you sure?’” Musk added that Trump responded, “Yes.”
This is how it works: Musk identifies non-compliant or unnecessary agencies. Trump authorizes action. Musk proceeds with a wrecking ball. Rince and repeat. Meanwhile, Congress is left in the dust wondering what happened.