The chart reflects the results of the new CBS News Poll -- done between October 12th and 16th of a random national sample of 1,189 registered voters, with a margin of error of 3 points.
The poll shows Clinton now has a 9 point lead over Trump in a four-way race (an 11 point lead in a head-to-head match-up). That's significant, and Trump seems to be losing support -- the poll had Trump behind by only 4 points in mid-September.
The poll also showed that most voters have made up their minds and will not change their vote between now and November 8th -- 90% of all voters, 94% of Clinton voters, and 93% of Trump voters. That means it's going to be extremely difficult for Trump to cut into Clinton's lead in the next three weeks.