The CNN Poll of Polls is an average of eight live operator non-partisan national polls of likely voters conducted over the past eight days (nearly entirely after the final -presidential debate): ABC News/Washington Post Tracking Poll (Oct. 26-29); Gallup Daily Tracking Poll (Oct 22-28); Investors Business Daily/TIPP Tracking Poll(Oct. 22-27); Politico/George Washington Battleground Poll (Oct. 22-25); Pew Research Center (Oct. 24-28); NPR (Oct. 23-25); CBS/NYT (Oct. 25-28) and American Research Group (Oct. 25-28). The Poll of Polls does not have a sampling error.