Did you read the document? It clearly lays out in section b exactly what the scope of the investigation was. It was related to the Trump campaign only. And, if you think about it, that makes sense. Any crime committed by a losing campaign would not need a SC to investigate, charge, etc.
Mule, Trump was placed under investigation because he ran against himself? If the Russians attempted to "interfere" in the election, why was only one side looked at? Trump won. Why wouldn't Mueller be interested if the Russians tried to help Hillary win? She was part of the election too was she not?