Pictured: the Republican rank and file (by lorigoldberg).

Not that we needed more empirical evidence that proves Republican voters are a bunch of wackadoos, but…

A plurality of Republican voters, 47 percent, said they believed Mr. Obama, who was born in Hawaii, was born in another country; 22 percent said they did not know where he was born, and 32 percent said they believed he was born in the United States.

And that, by the way, is the simplest explanation of why the reality show guy is surging.

Possibly-serious Republican presidential candidate Donald Trump is giving few details about the investigation he claims to have launched in Hawaii to get to the bottom of where President Obama was born, but the business mogul told CNN Thursday Americans will be “very surprised” by what he has found. “We’re looking into it very, very strongly. At a certain point in time I’ll be revealing some interesting things,” Trump said on CNN’s American Morning.

If you thought the GOP primary in 2008 was a carnival freak show, you ain’t seen nothin’ yet.