As Paul Krugman Reminds us, Trumpmania is an inevitable by-product of modern Republicanism.
For while it’s true that Mr. Trump is, fundamentally, an absurd figure, so are his rivals. If you pay attention to what any one of them is actually saying, as opposed to how he says it, you discover incoherence and extremism every bit as bad as anything Mr. Trump has to offer. And that’s not an accident: Talking nonsense is what you have to do to get anywhere in today’s Republican Party.
For example, Mr. Trump’s economic views, a sort of mishmash of standard conservative talking points and protectionism, are definitely confused. But is that any worse than Jeb Bush’s deep voodoo, his claim that he could double the underlying growth rate of the American economy? And Mr. Bush’s credibility isn’t helped by his evidence for that claim: the relatively rapid growth Florida experienced during the immense housing bubble that coincided with his time as governor.
Mr. Trump, famously, is a “birther” — someone who has questioned whether President Obama was born in the United States. But is that any worse than Scott Walker’s declaration that he isn’t sure whether the president is a Christian?
Mr. Trump’s declared intention to deport all illegal immigrants is definitely extreme, and would require deep violations of civil liberties. But are there any defenders of civil liberties in the modern G.O.P.? Notice how eagerly Rand Paul, self-described libertarian, has joined in the witch hunt against Planned Parenthood.
And while Mr. Trump is definitely appealing to know-nothingism, Marco Rubio, climate change denier, has made “I’m not a scientist” his signature line. (Memo to Mr. Rubio: Presidents don’t have to be experts on everything, but they do need to listen to experts, and decide which ones to believe.)
The point is that while media puff pieces have portrayed Mr. Trump’s rivals as serious men — Jeb the moderate, Rand the original thinker, Marco the face of a new generation — their supposed seriousness is all surface. Judge them by positions as opposed to image, and what you have is a lineup of cranks. And as I said, this is no accident.
It has long been obvious that the conventions of political reporting and political commentary make it almost impossible to say the obvious — namely, that one of our two major parties has gone off the deep end. Or as the political analysts Thomas Mann and Norman Ornstein put it in their book “It’s Even Worse Than It Looks,” the G.O.P. has become an “insurgent outlier … unpersuaded by conventional understanding of facts, evidence, and science.” It’s a party that has no room for rational positions on many major issues.
Or to put it another way, modern Republican politicians can’t be serious — not if they want to win primaries and have any future within the party. Crank economics, crank science, crank foreign policy are all necessary parts of a candidate’s resume.
The problem is not "Donald Trump is insane." The problem is "The entire Republican Party is insane." The even larger problem is that people keep voting for them, because there's tens of millions of voters who are driven by getting revenge on the country for daring to elect Barack Obama. Right now Donald Trump looks like he's the most willing to punish those who voted for our current President and so he's ahead, but let's be honest here. All the GOP candidates are willing to punish particular groups in order to win.
Republicans are the party of vengeance, and baby, vengeance sells.