The top chart is the Morning Consult Poll -- done on August 4th and 5th of a random national sample of 2,001 registered voters, with a margin of error of 2 points.
The bottom chart is the ABC News / Washington Post Poll -- done between August 1st and 4th of a random national sample of 1,002 adults, with a margin of error of 3.5 points.
Both of them show Hillary Clinton with a 8 point lead over Donald Trump in the four-way race.
