Once we see the actual letter or document from RR delineating the scope, then we will know. Another point is that facts that turned up not connected to Trump and his people, were no doubt sent or given to others to run with. We read that Gen. Flynn gave something like 16 or was in 19, interviews. Where did that info go, and what was done with it? We'll find out.
https://www.justice.gov/opa/press-release/file/967231/download