Last week my colleagues Paul Djupe, Jake Neiheisel, and I published a piece on political intolerance at FiveThirtyEight. Using data from a recent national survey, we show that there is a substantial amount of intolerance among the supporters of most presidential candidates, including Republicans and Democrats. While most of the attention has been focused on the Trump campaign (for many good reasons), there are no statistically significant differences between the supporters of any of the major candidates (save Kasich). While these supporters choose different groups as their least-liked, they don't differ in the amount of basic rights they would grant those they don't like.
So what does this mean for our politics? It is important to be on guard for candidates and political elites that encourage rather than dispel our worst traits, and it is even more important to design and maintain institutions to mitigate these flaws.