A fully told story begins with a conflict and ends with a resolution. When Robert Mueller’s redacted report is made public this week, Americans will have a chance to read for themselves the final word on suspected collusion between Russia and Donald Trump’s 2016 presidential campaign. That should be the end of the story, but given that many Democrats still think that a coup is the only way they can get rid of the president, it probably won’t be. Still untold is an accurate account of how a charge of collusion got started in the first place. The last chapter of this sordid story must be the prequel.