Trump claimed Monday that any agencies saying not to respond to the email were doing it "in a friendly manner."

Well, over the weekend, people outside the federal government realized that seemingly anyone can send an email that will presumably reach Musk at this Office of Personnel Management address. On Facebook, Alt National Park Service, a "resistance" page dedicated to protecting the parks, posted this:

The letter, signed by more than 100 House Democrats, called into question Elon Musk's authority to issue such a mandate to federal agencies.