For political junkies, even a midterm election is like Christmas every day: You turn on cable news, you read The National Memo, the newspapers, and the political websites, and there are always new gifts. But sometimes, even political junkies need a break. So when the daily presents have been unwrapped and played with, take a moment and enjoy these movies — about politics. All of them are entertaining, thoughtful, and sometimes even fun. All illuminate corners of our process; what we are and how we got here. And all are available on disc or streaming services.