Not every guiding principle in the United States is a law. Many are traditions, customs and best practices that someone came up with at one point and we all stuck to. These democratic norms are in place to facilitate a peaceful, respectful, smoothly-run government (they may not do a perfect job, but we need them nevertheless). So what happens when norms like respectful deference on the Senate floor or accepting election results are broken? Susan Stokes, professor of political science at the University of Chicago and Director of the Chicago Center on Democracy gives us the story.