This is yet another example of our system fundamentally being incapable of dealing with someone like Trump willing to deviate from all established norms.
Legally, POTUS is the classifying authority. They can give clearance to whomever they want.
That’s worked mostly fine since the classification system was established in the early 1950s because the assumption has always been that POTUS isn’t wildly compromised and completely surrounded by compromised individuals.
Oops.
Wattage = V x A.
They’re pointing out that it’s impossible to hold both wattage and voltage constant while changing the amperage.