Imagine someone offers you a very senior job in a your government. With huge delight, you resign from your previous job, you delete all your old tweets that denigrate your new boss (nothing on the internet is ever really deleted), you miss the birth of your son because you're so keen to get started, your wife divorces you ...
And ten days later, which is 15 days before his starting date, "You're fired!"
A) you have to feel at least a little bit sorry for him, and
B) if you ever get offered a job at the White House, remember what has happened to several of your predecessors.