It appears that the main question for Mueller's investigation was about obstruction of justice, the question being triggered by the President's comments to Comey, Comey's firing, and the President's comments afterward. Was there obstruction? Was hiding collusion the motivator to obstruct? Are there other factors, political or business or personal, to motivate the President to obstruct?
Stephen Schulhofer, a law professor at New York University, said the act of collusion can be either benign or criminal, depending on the circumstance.
“One of the most commonly used provisions of the U.S. Code, 18 USC §371, makes it a federal crime for two or more people to conspire ‘to commit any offense against the United States, or to defraud the United States, or any agency thereof in any manner or for any purpose,'” Schulhofer told us via email. “Agreeing (colluding) with someone for a perfectly lawful purpose, like arranging a game of golf or tennis, is not a crime. But colluding with the Russians, i.e. agreeing to cooperate, encourage or assist them in any way in pursuing anything they were doing that was illegal, is most certainly a crime.”
Do you remember?