You don’t care that this GOP congressman is quitting — but you should

(CNN)As the political world — and, really, just the world — was glued to Robert Mueller’s testimony on Capitol Hill Wednesday, Republican Rep. Paul Mitchell of Michigan announced he would retire in 2020, after two terms. That’s a mistake — because how Mitchell explained his decision provides a telling window into just how miserable it is to be in Washington these days. Here’s the key piece of what Mitchell told Politico, which first reported his decision, about his thinking: