[inquest]

if follows then that when that power is violated by prohibiting the right of control

In other words, by regulating it, as you earlier admitted that Congress has the power to do?

Just how many angels are you going to try to get to dance on the head of this semantic pin, anyway?

[Boot Hill]

inquest:   "In other words, by regulating it..."

Incorrect, Congresses authority to regulate the powers granted the executive, extends only to "carrying into execution" those powers, which does not include violating or infringing those powers.