The issue focused on the use of force by police, but it also included issues relating to civil rights, the environment, civil liberties and civil liberties issues.

"It's been really interesting to see how the conversation has been shifting around police use of force in recent years," said John Lott, director of the University of Wisconsin-Madison Center for Law and Social Research.

"One thing that's interesting is, in the context of the conversation surrounding civil rights, people are not necessarily saying it's