The Democrats have their "superdelegates" who answer to no one in electing the party's nominee. They are not the deciding factor in Clinton's coronation, but between them and the media the deck was heavily stacked in her favor.
Republican leaders are denouncing Trump in wholesale lots. I may agree with their sentiment, but in doing so they insult their voters. The man is the choice of the people of their party and these elites are openly rejecting the choice made by their voters.
Both parties have now reached the point that they openly display the degree to which they disdain the people whom they supposedly represent. They no longer even pretend that we have democracy.