In fact, you have to wonder why, exactly, the Republican establishment is really so horrified by Mr. Trump. Yes, he’s a con man, but they all are. So why is this con job different from any other?
The answer, I’d suggest, is that the establishment’s problem with Mr. Trump isn’t the con he brings; it’s the cons he disrupts....
As I see it, then, we should actually welcome Mr. Trump’s ascent. Yes, he’s a con man, but he is also effectively acting as a whistle-blower on other people’s cons. That is, believe it or not, a step forward in these weird, troubled times.
Note: As per usual most of the rest of this Krugman post is pretty bad, What is written above is the only interesting observation.