The Poll of Polls, conducted by CNN, is a compilation of several polls and surveys from the previous week. It is designed to predict the number of votes that each 2008 presidential candidate will recieve. Since the poll is a meta-analysis, and not a poll itself, it does not have a sampling error. The September 19, 2008 Poll of Polls included polls from Gallup, Diageo/Hotline and a new poll called Big Ten Battleground. That poll showed Barack Obama had a 3 point lead over John McCain.CNN: CNN's National Poll of Polls
