If you need further proof that political discourse is declining at alarming rates, I refer you to a GQ profile of potential Republican presidential candidate Ben Carson.

It starts by quoting the conservative former neurosurgeon calling President Obama a "psychopath."

The quote comes from Carson's comments while watching the President deliver his State of the Union Address.

After a media consultant watching with Carson notes how good the president looks ("He looks clean. Shirt's white. The tie. He looks elegant."), Carson says, "Like most psychopaths...that's why they're successful. That's the way they look. They all look great."

Carson, I'd note, is currently polling third for the Republican nomination behind Jeb Bush and Gov. Scott Walker in an average of GOP polls.

The Washington Post reports it questioned a couple pros on mental health who noted psychopaths are known for not planning ahead, consistent irresponsibility, lack of remorse and saying things to shock people; and, while conceding that some psychos lure people with "charisma," they -- perhaps not surprisingly -- suggest Obama isn't a psychopath.

I'd remind you Carson is a doctor.

But then he's also, ahem, is given to saying things to shock people.

For example, he's said lots of folks go into prison straight and come out gay because homosexuality is a choice; Obamacare is the worst thing that's happened in America "since slavery;" and America today is "very much like Nazi Germany."

So there's that.

Carson is one of those potential candidates who is completely unelectable. But at least he can contribute to the steady decline of civility in politics.