Purview of what. Have you read the various letters from Senators, e.g. Grassley and Hatch, requesting criminal investigations into false statements to Congress and obstruction. Their purview under a background investigation is one thing. Their purview to investigate allegations of violations of federal statute is only limited by law and regulation on conduct of investigations.
And they should. I don’t disagree with that at all. But those investigations into false statements as well as those involved with creating this mess (from the ‘legal team’ to DiFi) should not be a part of the investigation into her allegations. He needs to be cleared of this cloud