From Robinson's August 4 Washington Post column:

There are probably people out there who think the world is flat, and they're not worth writing about. The “birthers” wouldn't be either unless you believe a poll released last week by Research 2000 revealing that an astounding 28 percent of Republicans actually think that Obama was not born in the United States and another 30 percent are “not sure.” GOP officials need to order more tinfoil.

The survey, commissioned by the liberal Web site Daily Kos, found that 93 percent of Democrats and 83 percent of independents have no doubt - duh - that Obama was born in the United States. That only 42 percent of Republicans are similarly convinced is a fascinating indicator of just how far the Republican Party has drifted from the mainstream.

Also beyond the outer limits of sanity is CNN anchor Lou Dobbs, who has been giving prime-time exposure to the “birther” lunacy - even while denying that he believes in it. Dobbs' obsession with the “story” has become an embarrassment to the network, which has tried to position itself as untainted by political bias. CNN/U.S. President Jon Klein has pronounced the story “dead,” but insists that it's legitimate for Dobbs to examine the alleged controversy, though in fact no controversy exists.

The “birther” thing is only Dobbs' latest detour from objective reality. For years, he has crusaded against illegal immigration by citing facts and figures that often turn out to be wrong. Television can confer a kind of pseudo-reality on any manner of nonsense.

Is this an orchestrated campaign to somehow delegitimize Obama's presidency? Is the fact that he is the first African American president a factor? Is it that some people can't or won't accept that he won the election and serves as commander in chief?

Maybe, maybe not. Trying to analyze the “birther” phenomenon would mean taking it seriously, and taking it seriously would be like arguing about the color of unicorns. About all that can be said is that a bunch of lost, confused and frightened people have decided to seek refuge in conspiratorial make-believe. I hope they're harmless. And I hope they seek help.