Express extremely controversial and unfounded opinions about the investigation, McCain, and Mueller's alleged involvement in terrorism.
Mueller should be investigating McCain for treason.  I don't think there's a statute of limitations.  They could still try, sentence & execute McCain.  It would be a fitting end of his career.  Trump was far too nice to McCain.  But Mueller himself is a traitor.  Mueller let Muslim terrorists  kill Americans in Boston, after Russia repeatedly warned Mueller they were coming.  Mueller likes traitors like himself,  and hates patriots like Trump.