The charts above are from the NPR / Harvard School of Public Health Poll -- done between May 16th and June 13th of a nationwide sample of 4,192 adults. The margin of error at the 95% confidence interval is 2.8 percentage points for the total national results, 4.1 for White, 5.0 for Black, 5.1 for Latino, 6.7 for Asian, and 12.6 for Native American adults.
