Great book, one chapter dives into how Clinton and GOP were spooked when Perot won such a large % of popular vote. They addressed the debt with paygo, and also (not in book) made lots of changes to how debates happened and thresholds, worked with media to disincentivize platforming 3rd parties, and putting effort into making silly things (like not knowing “Aleppo”) a bigger deal than they are. The duopoly does not want more competition or democracy, they want power and will go to great lengths to keep it.