Of course, in reality, it mostly means he complied with the law. Or, in some cases, chose not to exercise executive privilege. You know who else chooses to cooperate with investigations into wrongdoing? Innocent people. They do it all the time. They are, however, less likely to dangle pardons, or label an investigation a “witch hunt,” or seek a loyalty pledge from the FBI director or fire said FBI director and then misrepresenting their reasons for doing so, or order top intelligence officials to clear them, or pressure the attorney general to limit the scope of the investigation (and un-recuse himself from overseeing it), or dictate a misleading statement about a meeting with a Kremlin-connected lawyer at Trump Tower, or try to fire the special counsel. Surely, we all know the basic facts behind an obstruction-of-justice case against Mr. Trump by now.