It didn’t come out of nowhere, no matter what conservative pundits are going to claim as they reconcile themselves with their party’s nominee:
The paranoid mendacity of Joe McCarthy, the racial pandering of Barry Goldwater, Richard Nixon, and George Bush, the jingoism and anti-intellectualism of Ronald Reagan, George W. Bush, and Sarah Palin — all these forces have embodied the essence of American conservative politics as it is actually practiced (rather than as conservative intellectuals like to imagine it). Trump has finally turned that which was always there against itself.
And the paradox is that he has managed to pull off the trick of downplaying or abandoning unpopular orthodox Republican ideas while being highly unpopular with the general electorate:
It is easy to find examples of parties where ideologically orthodox members felt sold out by moderate leaders who softened party platforms. Think of Tony Blair in the UK or Dwight Eisenhower in the US.
But at least those moderate leaders tend to be broadly popular with the public and to win elections. That allows those ideologically orthodox party members to get half a loaf — in the form of implementation of a watered-down version of a party platform.
Trump has somehow found a way to throw away the ideologically extreme ideas that orthodox conservatives cared about while actually making the party less popular. His nomination is a recipe for conservatives to sell out and lose anyway.
And don’t kid yourself: Trump is a terrible general election candidate. I’m not basing that on the head-to-head polls, which show Clinton thumping Trump; they generally aren’t very predictive this far out, and while they might mean more than usual this year because of how well-known both candidates have been for so long, there’s no way of knowing that ex ante. Rather, it’s that 1)the Democrats have a structural advantage in the electoral college all things being equal; 2)his unfavorable ratings are insanely high, putting him in a major hole and negating Hillary Clinton’s own high unfavorables, which should have been a major opportunity for the GOP; 3)Trump is almost certain to mobilize a high minority turnout; and 4)giving sexist boors enough rope is one thing that Clinton does really well. I would never say that it’s impossible for a major party candidate to win an election under the current partisan configuration, but Clinton is a yooooooooge favorite.