Parallel to the ongoing discussion of whether or not the Republican Party has any serious interest in curtailing the right-wing bender it’s been on since at least 2009 (and arguably a lot longer), we have the interesting phenomenon of a new and very loud Republican Senator who stands proudly for the point of view that the bender needs to get a lot crazier. Here’s the most succinct version of his argument that Republicans are losing because they aren’t standing up for “conservative principles:”

“Why did we lose? It wasn’t as the media would tell you: because the American people embraced big government, Barack Obama’s spending and debt and taxes. … That wasn’t what happened. I’m going to suggest to you a very simple reason why we lost the election: We didn’t win the argument,” Cruz said before pointedly lowering his voice. “We didn’t even make the argument.”

Yeah, not a dime’s worth of difference between the two parties, as George Wallace used to say back in the day.

But beyond this continuation of the ludicrous proposition that Republicans are too moderate and compromise-oriented (which really hasn’t been a credible argument since 1990, if then), Cruz is already distinguishing himself as the kind of mendacious bully-boy–sort of a smarter version of the Rick Perry who first emerged on the 2012 presidential campaign trail roaring and strutting around and threatening to tear the godless liberals limb from limb–who makes any sort of bipartisan discussion absolutely impossible. And while a few Republicans whisper about him obliquely or off-the-record, he’s mostly been lionized for this behavior:

“Senator Ted Cruz came to Washington to advance conservative policies, not play by the same old rules that have relegated conservatives, and their ideas, to the back bench,” Michael Needham, president of the influential Heritage Action said on Tuesday. “It should come as absolutely no surprise the Washington Establishment – be it the liberal media, entrenched special interests or even wayward Republicans – are now attacking him in the press for following through on his promises.”

Frank Cannon, president of the American Principles Project, said: “It’s about time someone annoyed those who have been complacent in doing what is necessary to get the country back on track. We applaud Senator Ted Cruz’s dedication to conservative principles and being an articulate spokesman for those principles. We are pleased he is shaking up Washington and doing exactly what the people of Texas elected him to do.”

Having brought back memories of Joe McCarthy in his nasty interrogation of Chuck Hagel, Cruz is back in the news right now for smearing left-wing Harvard Law School professors as communist revolutionaries (his effort to back-track on the smear without admitting it didn’t work too well).

As both Steve Kornacki and Greg Sargent have argued today, the acceptance of Cruz by his fellow-Republicans as a hail-fellow-well-met (and perhaps the future face of the party!) shows the shallowness of the talk about “reform” in the GOP (or alternatively, the shallowness of the MSM’s understanding of what conservatives mean when they talk about “reform”).

So I propose a litmus test for all those Republicans who say they learned their lesson and want to build a GOP that is free of the rancor and extremism of the recent past. Let’s ask them: what do you think of Ted Cruz? Because if they won’t call this guy out, then they haven’t learned a thing.

Ed Kilgore

Ed Kilgore is a political columnist for New York and managing editor at the Democratic Strategist website. He was a contributing writer at the Washington Monthly from January 2012 until November 2015, and was the principal contributor to the Political Animal blog.