system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does the United States Federal Government prevent a President from assuming total control and creating a dictatorship - like the actual people, laws or processes, etc that stop a rouge President from becoming a thing?
gpt
Mostly the fact that people would not recognize his authority.

If the president ordered airstrikes or army occupation of a US city without cause, the military leadership would inform the president that is an illegal order and ignore it and likely inform congress of the president's attempt to murder US citizens so that congress could impreach him.

Legally, the President does not have the authority to make law, so he can't unilaterally change laws. Again, if he tries to enforce invalid law, congress can impeach him.

Worst comes to worst, the States or People can rebel against the president's authority using police, national guard, and privately owned weapons.