Cruz and Kasich are out. The Donald is in. The #NeverTrump brigade, the Republican Party’s half-hearted divide-and-conquer strategy, and Trump’s own seemingly endless rhetorical blunders simply weren’t enough to stop him.

So far only the calm assurances of pundits that Trump can’t win in November seem to be staving off a meltdown.

Commentators are busying themselves nailing down the reasons for Trump’s success. Apart from Republican voters’ disturbing appetite for Trump’s racist, xenophobic, misogynistic drivel, other factors are at work.