"Drain the swamp” suggests that all political corruption is the same. It isn’t, and the distinctions matter. "When corruption is perceived as universal, those in power can use investigations and allegations of corruption as a weapon. Trump has followed the playbook invoking his catchphrase again in recently calling for an investigation of Obama. American politics is in urgent need of repair, but the idea of the swamp feeds a cynicism that’s not only inaccurate but also makes it harder to distinguish between decent people who are trying to do the best they can in a difficult system and real malfeasance —