Taking Political Revenge
Of course, Donald Trump wasn’t the first to exact revenge against his political opponents. And Nixon, with the infamous “Enemies List” may not have been the first either.
It was, however, Trump who made this a overt, standard practice. And what an effective one it has been.
In fact, the only reason he has any relevance in U.S. politics at all (other than being on his way to become the first U.S. president to go to prison) is that GOP congresspeople are terrified of what Trump will do to them if they do not whole-heartedly support him.