I don't believe Hamdi is a valid case on which to rest your premise the President is disregarding cons utional rights.
Hamdi was captured on the field of battle in Afghanistan, a foreign country. It is my understanding that no other person, in the history of the country, that has been so incarcerated has ever been afforded fourth amendment protections or rights.
It was perfectly reasonable for the Commander in Chief to attempt to get this s bag designated as an enemy combatant and to treat him as such.
But, that your argument rests on such a cir stance is reassuring to me. After all, I know of no case where an American citizen has had any rights or protections negated and, as Extra Stout pointed out in this case, the matter was settled in court -- as it is supposed to be.