The Supreme Court has a special role to play in the United States system of government. The Constitution gives it the power to check, if necessary, the actions of the President and Congress.
It can tell a President that his actions are not allowed by the Constitution. It can tell Congress that a law it passed violated the U.S. Constitution and is, therefore, no longer a law. It can also tell the government of a state that one of its laws breaks a rule in the Constitution.
The Supreme Court is the final judge in all cases involving laws of Congress, and the highest law of all — the Constitution.
I'd be sincerely interested to know where this above is incorrect.
Birdwatcher
"...if the gentlemen of Virginia shall send us a dozen of their sons, we would take great care in their education, instruct them in all we know, and make men of them." Canasatego 1744
