Rick Perlstein:

The GOP Circus: Truth-Defying Feats, by Rick Perlstein: ...Step right up! Be amazed, be enchanted, by the magic GOP unicorn-and-rainbow-producing tax cut machine!

It takes a lot of energy to sustain a lie. When enough people do it together, over a sustained period of time, it wears on them. It also produces a certain kind of culture: one cut loose from the norms of fair conduct and trust that any organization requires in order to survive as something more than a daily, no-holds-barred war of all against all. A battle royale. A circus, if you prefer.

And the act in the center ring? The Amazing Death Spiral. One performer does something so outrageous that anyone else who wishes to further hold the audience’s attention has to match or top it––even if they know it’s insane. Listen to the warning of the one guy who dares grab the ringmaster’s microphone and say that if this keeps on going everyone will end up dead. That’s what poor old John Kasich did. Hear him cry about his “great concern that we are on the verge, perhaps, of picking someone who cannot do this job. I’ve watched people say that we should dismantle Medicare and Medicaid. . . . I’ve heard them talking about deporting 10 or 11 [million] people from this country. . . . I’ve heard about tax schemes that don’t add up.”

And what happened to him? Read the snap poll from Gravis research. Only 3 percent of Republicans thought he won the debate. (First place was Trump with 26.7; second was Rubio with 21.1; third was Cruz with 17.3; and fourth was Ben Carson with 12.5.) Only 2.4 percent said they would vote for Kasich for president. When the clowns are running the show, of course it’s going to be in disarray.

David Brooks says not to worry if candidates are lying about their economic plans, they are just exaggerating to make themselves more attractive to conservative voters (they couldn't possible be lying about who their true allegiance, could they?):

At this stage it’s probably not sensible to get too worked up about the details of any candidate’s plans. They are all wildly unaffordable. What matters is how a candidate signals priorities. Rubio talks specifically about targeting policies to boost middle- and lower-middle-class living standards.

Paul Krugman is, shall we say, unconvinced:

...My experience is that the best way to figure out a candidate’s true priorities — and his or her character — is to look hard at policy proposals.

My view here is strongly influenced by the story of George W. Bush. Younger readers may not know or remember how it was back in 2000, but back then the universal view of the commentariat was that W was a moderate, amiable, bluff and honest guy. I was pretty much alone taking his economic proposals — on taxes and Social Security — seriously. And what I saw was a level of dishonesty and irresponsibility, plus radicalism, that was unprecedented in a major-party presidential candidate. So I was out there warning that Bush was a bad, dangerous guy no matter how amiable he seemed.

How did that work out?

So now we have candidates proposing “wildly unaffordable” tax cuts. Can we start by noting that this isn’t a bipartisan phenomenon, that it’s not true that everyone does it? Hillary Clinton isn’t proposing wildly unaffordable stuff... And proposing wildly unaffordable stuff is itself a declaration of priorities: Rubio is saying that keeping the Hair Club for Growth happy is more important to him than even a pretense of fiscal responsibility. Or if you like, what we’ve seen is a willingness to pander without constraint or embarrassment.

Also, his insistence that the magic of supply-side economics would somehow pay for the cuts is a further demonstration of priorities: allegiance to voodoo trumps all.

At a more general level, I’d argue that it’s a really bad mistake to wave away policy silliness with a boys-will-be-boys attitude. Policy proposals tell us a lot about character — and the history of the past 15 years says that journalists who imagine that they can judge character from the way people come across on TV or in personal interviews are kidding themselves, and misleading everyone else.

"What matters is how a candidate signals priorities." Yes, and the priority seems to be lying is okay to get what you want. That's a great trait to have in a president who might fact the decision to send our kids to die in a war he or she wants. Oh wait.