WASHINGTON — Politics Rule No. 1: Never say what you really think, especially before you think.

GOP presidential hopeful Herman Cain learned this lesson hard and fast when he asserted recently that communities have a right to thwart construction of mosques in their neighborhoods.

A few months earlier, a reporter asked Cain whether he'd be comfortable with a Muslim in his Cabinet, and Cain said, well, no, not really. He elaborated, but too late.

If anti-Muslim rhetoric is tonic to the far right, it was gold to those on the left looking for a nugget to chew on. Cain had stepped in it and every effort to extricate himself has made things worse. As dozens have noted, Cain's anti-mosque position doesn't jibe with the U.S. Constitution he aims to defend.

I sat down with Cain recently and offered him an opportunity to clarify his position. After half an hour or so of discussion, he eventually acknowledged the error of his comments while offering the usual litany of explanations. Microphones in face, questions lobbed like grenades, words taken out of context.

He also correctly recognized that no matter what he says, those who want to demagogue this issue will continue, and the evidence bears him out. The original question, he says, was would he feel comfortable? And the immediate, reflexive, impolitic answer was that he wouldn't … unless they're committed to the Constitution rather than Shariah law.

What followed the dot-dot-dot got lost in the ethers, but never mind. When you run for president, you run with the big dogs.

The surpassing truth, of course, is that Cain was just plain wrong. The law of the land prevails every time and Muslims, like everyone one else, either play by the rules or they don't play. The reason things keep getting worse for Cain is because when he tries to explain, he's really trying to justify — and you can't justify "wrong."

Politics Amendment No. 1: Everybody gets to say one stupid thing and stay in the race. Cain isn't a bigot or a hater, but he was uninformed and reacted as the relatively inexperienced politician that he is. He has thought better of it, as people are allowed to do, and his final statement is that all Americans acting within the law may practice their faith as they please. There now, that wasn't so hard.

A mathematician by training, a preacher by vocation and a successful businessman by occupation, Cain is at Ground Zero when it comes to media sophistication. One may reasonably argue that anyone running for president should know better, but those whose votes Cain currently courts don't care about this type of sophistication. In fact, the more the lamestream media come after him, the more they like him. See Sarah Palin.

But it's a great big country, the president serves the many, not the few, and Cain will become a smarter politician. Meanwhile, his strength as a candidate is in his considerable business acumen. How he would lead as president is evident in his campaign structure. He's the CEO, naturally, and his top aides are vice presidents. He's developing a board of advisers (economy, agriculture, foreign policy, health care, etc.), and the chairperson of each advisory group will become his board of directors.

Cain's criticisms of President Obama largely focus on a management style that leads to lethargic decision-making. Whether Cain will get to test his own management style will depend foremost on whether he masters his tongue. In the meantime, he has some interesting ideas that are more compelling and urgent than whether Murfreesboro gets a mosque. He deserves a second hearing.

Kathleen Parker's email address is kathleenparker@washpost.com.