Pollster John Zogby attacks statistician Nate Silver. – You take other peoples polls, compare records for predictions, add in some purely arbitrary (and not transparent) weights, then make your own projections and rankings.

John Zogby to Nate Silver:

Don&#8217-t Create Standards You Will Find Hard to Maintain Yourself.

Be Honest.

Understand That There&#8217-s Much More to Being a Good Pollster.

Appreciate Innovation.

Do Some Polling.

Nate Silver responds.

UPDATE: Prof Andrew Gelman&#8217-s take.