The CNN / ORC Poll was done between September 28th and October 2nd of a random national sample of 1,213 likely voters, and has a 3 point margin of error.
The CBS News / New York Times Poll was done between September 28th and October 2nd of a random national sample of 1,217 likely voters, and has a 4 point margin of error.
The NBC News / SurveyMonkey Poll was done between September 26th and October 2nd of a random national sample of 26,925 likely voters, and has a 1 point margin of error.
