President Donald Trump has moved quickly to remake the Department of Homeland Security by firing the heads of the Transportation Security Administration and Coast Guard before their terms are up while eliminating all the members of a key aviation security advisory group.
He cannot. He has has to follow the legal structure set by the legislature. Now, if nobody stops him or say no 🤷
The Legislature is a separate but equal branch to the Executive, they have no say over what he does within the Executive.
I mean they do but it does require passing laws specifically outlining the thing and both houses are controlled by republicans.