Wrong.
The People of the United States have powers, some of which are delegated to Congress and some to the President.
In 1941, Congress used its power as follows: " the President is hereby authorized and directed to employ the entire naval and military forces of the United States and the resources of the Government to carry on war against the Imperial Government of Japan; and, to bring the conflict to a successful termination, all of the resources of the country are hereby pledged by the Congress of the United States."
Using those resources of the Government as directed by Congress, President Roosevelt censored the press, opened the mail, detained American citizens indefinitely without trial and confiscated their property, revoked naturalizations and deported enemy aliens, shot enemy agents without trial, carried on a continuous propaganda campaign with federal funds, seized entire industries for war production, voided contracts, rationed private property, and in general kicked ass.
Do you and other FReepers contend that the exercise of those powers, "authorized and directed" by Congress, is intrinsic to the Office of the President?
If so, why do you think that?
If not, whence does Congress derive the power to authorize and direct such things?
And if you believe Congress has such power, do you believe they have exercised it post 9/11?