New Delhi: CNN collects data from random precincts across states to project wins. This data is then analysed by statisticians and specialists to then project states to candidates. This also means that when all the votes are counted the projected candidate will win.
This data collection is also a key indicator of voter issues - 62% have said economy is the key issue, 10% felt iraq was the most important and terrorism and healthcare were each top issues at 9%.
With poll voter turnout seeing record high nos this data collection process gains more significance.