Michael Adcock performs “Impeachment Polka.” (Michael Adcock performs “Impeachment Polka.” Zach Purser Brown/The Washington Post) An impeachment means history and history means attention and attention means money. Big events sell a lot of papers, as they used to say, though of course, they don’t sell as many newspapers as they used to. Instead, major news events sell just about anything else, from “Impeach 45” buttons on CafePress to impeach-mints on Zazzle. Any time something […]