Second, state action may not impede valid constitutional exercises of power by the Federal government.

If not, then I don't think it was a worthwhile, or particularly valid exercise.

Prior to the mid-1800s, most legal systems accepted wife beating as a valid exercise of a husband's authority over his wife.

In a unanimous decision, the court held the legislation was a valid exercise of the trade and commerce power.

These skills can include moves similar to tumbling and are often used as a valid exercise in itself.

Consequently, they held that the New York law was not a valid exercise of the state's police powers.

The opinion also said that the law was a valid exercise of the power of Congress to regulate interstate commerce.

Case law in general has supported temporary moratoriums as valid exercises of police power to protect "health, safety and welfare."

That, he concluded, does not "represent a valid exercise of Congress's power."

If this is to be a truly valid exercise, however, realism should never give way to idealism.