The Origins of Political Order: From Prehuman Times to the French Revolution by Francis Fukuyama was absolutely a fascinating read. The scope of this book is vast and I think many of you who love macro ideas, history, economics, and political science will enjoy it immensely.
Plus the 2nd volume Political Order and Political Decay: From the Industrial Revolution to the Globalization of Democracy is to be out in the next month.
If you're looking for a good political science primer, try Francis Fukuyama's Origins of Political Order and Political Order and Political Decay. It's a useful one-two punch: the first book covers modern state formation and some essential history from before the French Revolution, and the second book covers how modern political institutions grow and decay. The latter half of the second book covers the United States in some detail, which ties everything in the rest of the book together and gives you some useful context for what's going on now.
Alternatively, if you're looking for why it's so terrible to discus politics lately, try Why We're Polarized by Ezra Klein. It covers the increasing divide between left and right in America, and he has some first-hand explanations about how our information landscape has contributed to it. Unlike Fukuyama, Klein has a slight leftist bias, but it's pretty easy to ignore if that doesn't suit you.