Does U.S. Poll Rule Out Fraud in Iran?

Authors of heavily-quoted poll changed their conclusion to support validity of Ahmadinejad landslide.

Western media, along with thousands of Iranians protesting around the world, have formed a rough consensus over the six days since Iran's Presidential Election that Ahmadinejad's victory was the result of widespread fraud. However, a recent Op-Ed in the Washington Post references a rare public opinion poll in suggesting that the election may indeed have been fair. While there is not enough information to determine whether or not the election was rigged, this poll certainly doesn't rule out the possibility. If only because the poll's authors concluded prior to the election that the very same data predicted a relatively close vote. Yet today, those same authors are claiming that their figures demonstrate the validity of Ahmadinejad's landslide victory.