Using the word ban to thwart the Russia probe is more problematic — but doable. “Collusion” would need to be replaced by a more benign word, such as “cooperation.” The name “Russia” could be jettisoned in favor of the friendlier-sounding “Canada” and the problematic phrase “obstruction of justice” replaced by the inoffensive phrase “presidential discretion.” To be safe, Trump should ban “impeachment” in favor of “commendation.” The worst-case headline for Trump becomes: “President Trump commended for using presidential discretion over cooperation with Canada.”