Was the initial decision to investigate Trump’s campaign an honest mistake by the Obama administration? Or was it an attempt to rig the election in favor of Clinton, and when that failed, overthrow a duly elected president?
Those outstanding issues are as worthy of complete answers as those that Mueller investigated. In addition to knowing whether there was an improper relationship between a candidate and a foreign power, Americans also deserve to know what was going on inside their own government and whether it was simply incompetent or thoroughly corrupt, or some combination of the two.
Put another way, what did President Obama and his administration do, and why did they do it?
The task of finding out falls to the new attorney general, William Barr. He will have his plate full in the coming days deciding how much of the Mueller report can legally be made public and explaining his decision to Congress.