Next time you watch the news, do me a favor. Take a look at the reporters’ arms. Do they seem tired to you? Overworked? They have to be a little sore at least. Such is the vigor with which the media have been patting themselves on the back lately.

After a full year of the Trump steamroller -- in which a honey-baked ham with authoritarian inclinations has managed to blow past any serious questioning of his policies or candidacy -- the media apparently feel that they’re now doing their jobs.

You could see it a few weeks back in the breathless praise for MSNBC's Chris Matthews when he interrogated Trump on abortion; or in the hype around the New York Times interview that nailed down Trump’s Strangelovian approach to nuclear weapons; or even in Trump’s recent pivot toward a more “presidential” tone. Among reporters and critics that I know, there’s a growing sentiment that Trump is changing his ways because they, the press, are taking him seriously now. They’re handling Trump not based on the job he has (obnoxious reality star) but on the job he wants (president or, perhaps, generalissimo).

Call me crazy, but I’m not totally buying this notion. I think it’s a crock. The media haven’t “done their job” with regard to Trump, and the reason why is very simple: The press have largely ignored the issue that made him a political phenomenon in the first place.

The media have overlooked Trump’s birtherism.

I’m a Catholic. I’ve seen enough baptismal water spilled to fill William Taft’s bathtub ten times over. But it doesn’t take a Catholic like me to understand the original sin of the Trump candidacy. His first act on the political stage was to declare himself the head of the birther movement. For Trump, the year 2011 began with the BIG NEWS that he had rejected Lindsay Lohan for Celebrity Apprentice, but by April, his one-man show to paint Barack Obama as a secret Kenyan had become the talk of the country. Five years later, Trump is nearing the Republican nomination for president.

In many ways, birtherism is the thing that launched Trump's campaign. But as he nears the big prize in Cleveland, Trump has refused disavow his conspiracy theory. In July, when Anderson Cooper pressed Trump on whether President Obama was, in fact, born in the United States, Trump’s response was, “I really don’t know.”

I’m taxing my mind to find a historical comparison here, to put this in context. I suppose Trump’s birtherism is the intellectual equivalent of the flat-earth theory; both are fully contradicted by the evidence. But then again, there is a difference between the two, and the difference is this: If a presidential candidate insisted that the USS Theodore Roosevelt would fall off the edge of the map after sailing past Catalina, Wolf Blitzer would probably ask him about it.  

It’s been nine months since Cooper pressed Trump on the issue of whether he thinks the president is an American -- almost enough time, as Trump might put it, to carry a baby to term in Kenya and secretly transport him to Hawaii -- and still, no one has gotten an answer. In fact, most have stopped asking. It’s now known among reporters that Obama’s birthplace is a strictly verboten topic for Trump. If you bring up the subject, as Chris Matthews did in December, Trump looks at you with a glare I assume he otherwise reserves for undocumented immigrants and say, “I don’t talk about that anymore.”

Since July, there have been 12 debates, six televised forums, and enough cable interviews to combust a DVR, but the only “birther” issue extensively covered in the press has involved whether Sen. Ted Cruz was born in Calgary Flames territory. Most reporters don't seem to want to piss off the The Donald and risk losing their access.

Look, I understand that there’s plenty of craziness to investigate in our politics. Cruz believes that global warming is a hoax. Ben Carson claimed that the Biblical Joseph built the Great Pyramid of Khufu. Heck, once upon a time, George W. Bush famously thought the jury was out on evolution.

But Trump’s birtherism is far, far more important -- for two reasons:

First, in my experience, when a politician says he doesn’t talk about an issue, that’s precisely the issue you should ask him about.

Second, there’s another difference between being birther and flat-earther. It’s possible to believe the Earth is flat and not be a bigot, but it’s impossible to be a birther and not be one.

It’s no surprise Trump’s campaign has been a parade of racism after his foray into birtherism -- a border wall, a ban on Muslim immigration, and the failure to denounce the Ku Klux Klan. Unlike Bush’s creationism and Carson’s historical idiocy, Trump’s birtherism can’t be written off as a minor policy quirk. It’s less of a bug than a feature. Trump, by his own admission, sees the controversy over Obama’s birthplace as foundational to his brand and instructive to how he approaches politics. When ABC asked him about his aggressive birtherism in 2013, he said, "I don't think I went overboard. Actually, I think it made me very popular... I do think I know what I'm doing.”

I think it made me very popular… I do think I know what I’m doing.

With birtherism, Trump discovered a sad truth about modern American media: Bigotry gets you attention. And long as you bring viewers, readers, and clicks, the fourth estate will let you get away with that bigotry.

* * *

Long before Donald Trump, there was another demagogue, Huey Long, who made a run for the White House. Long was fictionalized and immortalized as the character Willie Stark in Robert Penn Warren’s novel, All The King’s Men, in which Warren wrote, “Man is conceived in sin and born in corruption.”

So, too, was Trump’s political career.

The press should get their hands off their backs and ask him about it.