It is anyone who works in Congress elected or not, those who write big checks, those who run campaigns, those who trot out the R talking points over the corporate media "journalists" or otherwise, R lobbyists, and those who run the Executive branch during R administrations
Some really good reading is here
Will the Republican Party Survive the 2016 Election? - The Atlantic
But this as about more than the R party. There is a sense in america that those who have been churned out by the upper crust university, especially the Ivy's, neither understand what Americans want or care, because their actions have over a long period of time indicated that what they want is to make the rest of us do what they want us to do, and they skim wealth off of the society while adding very little of value. There is now a movement of rebellion against this class, currently solidly behind Trump because he is the only one who has ever understood or showed a willingness to fight for us. I fully expect that those little people who have traditionally been considered moderates or D's will vote for Trump in great numbers.
Those who graduated from an Ivy, especially with an advanced degree, are guilty of being the enemy until they as individuals convince us that they are not. THose with extensive government leadership experience are the enemy. By the time he is done this experience that Hillary keeps yakking about is going to be what disqualifies her from the POTUS chair, and that would have happened even if she had ever shown any competence in her work, which she has not.