If you want to understand intra-GOP warfare, the decision-making process of our president, the implosion of the Republican healthcare plan, and the rest of the politics of the Trump era, you don’t need to know about Russian espionage tactics, the state of the white working class, or even the beliefs of the “alt-right.” You pretty much just need to be in semi-regular contact with a white, reasonably comfortable, male retiree. We are now ruled by men who think and act very much like that ordinary man you might know, and if you want to know why they believe so many strange and terrible things, you can basically blame the fact that a large and lucrative industry is dedicated to lying to them.