“POTUS has exclusive control over who, when and under what circumstances.”
True - but if access is provided to candidate Clinton it will be in spite of all precedent:
As Comey said - “To be clear, this is not to suggest that in similar circumstances, a person who engaged in this activity would face no consequences. To the contrary, those individuals are often subject to security or administrative sanctions.”
Thus - security or administrative sanctions should be in place, and if not then it is clear beyond any argument that Zero and his administration has placed politics above the law (as if everything else they do has not mad it clear).
Bill Clinton overhauled the rules regarding security clearances. The president is the decider as to who has to have one and drafted the process for getting one.