It's much more complicated than that those ostensible 'affiliations' indicate. Many Trump voters do not identify as 'Republicans'. Don't assume elections are 'rigged' because of some uneasy data. There are obviously specific issues with voting but even then it's more nuanced.
I just think of Perot, after which the voting rules, or rather the percentages for for entry were changed. Also the association running the debates went from the League of Women Voters to the Commission on Presidential Debates:
That's when it changed from 2% to 5%, and on and on. It was the Perot incidents that make me lean towards a "rigged" system, more than anything, really.
