ABC News/Ipsos poll info -
Dates: Oct 18-22
Random national sample of 2,808 adults, including 2,392 registered voters and 1,913 likely voters.
Results have a margin of sampling error of 2 percentage points, including the design effect, for the full sample and for registered voters, 2.5 points for likely voters and 5.5 points for likely voters in the battleground states, AZ, GA, MI, NV, NC, PA and WI. Sampling error is not the only source of differences in polls.