Certain aspects of the process whereby Robert Mueller was appointed special counsel challenge the legitimacy of the entire undertaking.  To understand them, we must dip into the legalese surrounding the appointment process, but at least that weighty language is mercifully short. Please read Rod Rosenstein's letter appointing Robert Mueller as special counsel.  The first thing to notice is that Rosenstein's letter explicitly directs Mueller to investigate Trump-Russia collusion and only incidentally extends his investigatory purview to other matters.  In short, it does not say Mueller should investigate general Russian government efforts to meddle in our election process.  Mueller was free to investigate...