there is nothing in the constitution that prohibits a president from firing employees.
Abraham Lincoln fired 1100 employees when he became president. If he can do that, so can Donald Trump. every other president before or after him can do it when he/she finds it prudent to do so. He/she doesn't need a reason.
what you speak of is the merit based law, federal managers can't just fire employees unilaterally. they have follow to procedure to justify firing an employee. Originally Posted by dilbert firestorm
The Pendelton Civil Service Act was passed after Lincoln was president.