There are a few Trump supporters who are starting to understand the process. The Ron Paul folks were the same way until they actually read the rules.
Voter apathy in America has been rampant for some time. That people are starting to pay attention and vote is good, that they are becoming educated about the pernicious and convoluted delegate process is even better.
Pennsylvania’s delegates appear on the ballot, unidentified as to which candidate they are loyal to, yet across the ballot sheet on the other side- appears the candidates. Would it be too much trouble to link the two together? And why do you suppose the layout is set up that way?
Both major political parties have established rules that favor the rule makers, INSTEAD of the voters.
The OUTRAGE isn’t that one candidate knew the rules and took advantage of them, while another candidate didn’t, the OUTRAGE is that the voters do not know the rules or the process, and that it is confusing, and intentionally so (in some cases) by design.
Trump’s whining is a well thought out tactic that is opening the eyes of the voters, which NEED to be opened.