The Washington Post‘s polling director, Jan Cohen, looks at the issues affecting accurate polling for the election.

“If the trustworthy polls continue showing Obama ahead and McCain wins, it would be a monumental failure for political scientists, reporters and pollsters alike — an indictment worse than New Hampshire, worse even than 1948. I think the quality pollsters have done a good, professional job this year. I don’t think we’ll get bitten. Even so, I’ll be a little worried until it’s all over. I’m not sure what kind of night I’ll have on Tuesday. But I’m sure I’m going to have a nervous one on Monday.”

Read the full story here.