Quitting a job in order to aspire for a higher office is par for the course.
The most blatant example is none other than Obama, who stabbed the members of his community for whom he organized, in order to run for the Illinois Senate seat, then stabbed the good (but obviously stupid) folks of that state, again, in order to run for the United States Senate seat, and then stabbed the folks of Illinois in the back, again, - quitting his Senate seat - in order to run for the Presidency, for which he was uniquely and singularly and pathetically unqualified. As the implementation of his signature achievement, Obamacare, clearly shows.
Obama is the Quitter-In-Chief whose greatest act in life if his stubbornness to cling to the office which he never earned and would have never got if his father had been white.
He only reason does not quit the office of the Presidency, is that he thinks that he is invincible, and because he has no shame and he has no self-respect and he has an army of loyal acolytes willing and wanting to be his Monica Lewinsky's.