The great unifier, or....

Check out this graphic (H/T ShotIntheDark.info) comparing how people viewed race relations in 2009 vs. 2016.  Now granted, there was probably a bit of an "era of good feelings" with the start of the Obama presidency which probably influences the data, but it is still striking that the percentage of people who felt race relations were "good" halved, and the percentage of Americans who felt race relations were "bad" nearly tripled. 

Keep in mind as well that this was before the election.  This is taken at a time when most people believed that Hilliary Clinton would be the next President.   You would have thought that we'd elected Bull Connor to the Presidency in November of 2008.