Elections might seem like they produce results people want, but that isn't always the case. This video describes the McKelvey-Schofield Chaos Theorem. To learn more, you can find the original explanation and proof of the theorem at http://www.sciencedirect.com/science/article/pii/0022053176900405/pdf?md5=a5e53112c59f6ad74f3e1557ea759db2&pid=1-s2.0-0022053176900405-main.pdf. 0:00 Transitivity 0:22 Voter Preferences 1:22 The Agenda-Setters 2:25 A Mathematical Approach 4:27 Choosing the Agenda *** Spanning Tree is an educational video series about computer science and mathematics. See more at https://spanningtree.me/ To be notified when a new video is released, sign up for the Spanning Tree mailing list at https://spanningtree.substack.com/ Spanning Tree is created by Brian Yu. https://brianyu.me/ Email me at brian@spanningtree.me to suggest a future topic.