Many supporters may have been interested in symbolically sticking their thumb in somebody’s eye, but they are reality TV watchers, not actually interested in politics or governance. They didn’t show up. We can expect similar Trump underperformance in state after state.
Furthermore, we saw a big management failure in Trump’s organization. Bernie Sanders is a good enough executive that he was able to lead a campaign that brought outsiders to the polls. Trump is not as effective a leader as Sanders.
Trump’s whole campaign was based on success breeding success, the citing of self-referential poll victories to justify his own candidacy. How does he justify a campaign built entirely around his own mastery? Can an aggressor like him respond gracefully in the days ahead to self-created failure? His concession speech was an act of pathetic self-delusion.