The terrorist attacks of September 11, 2001,
on the United States have yet again raised ques-
tions about what powers the president has as
commander in chief. Similar to what happened
in Vietnam, Congress authorized the president
to respond to the attacks with the authorization
to use military force (AUMF) on September 14,
2001: “to use all necessary and appropriate force
against those nations, organizations, or persons he
determines planned, authorized, committed or
aided the terrorist attacks that occurred on Sep-
tember 11, 2001, . . . in order to prevent any future
acts of international terrorism against the United
States by such nations, organizations, or persons.”
As a result of AUMF, President Bush has invoked
it, as well as claims of inherent executive authority
as commander in chief, to undertake a variety of
actions including electronic surveillance of over-
seas communications without warrants issued by
the courts and the detaining of suspected ter-
rorists without arraignments. In a series of cases
including H
AMDI V. RUMSFELD, 542 U.S. 507 (2004),
RASUL V. BUSH, 545 U.S. 466 (2004), RUMSFELD V.
PADILLA, 542 U.S. 426 (2004), and Hamdan v.
Rumsfeld, 126 S.Ct. 2749 (2006), the Supreme
Court has not ruled on the inherent powers of the
president as commander in chief, and it has gen-
erally followed the dicta of Justice Jackson from
Youngstown in describing whether Bush was given
congressional authority to undertake the activities
at issue in these cases.
Overall, the power of the president as com-
mander in chief is significant in his being the
civilian head of the military, but the Constitution
remains silent on how much authority is vested in
that offi ce.
For more information: Adler, David Gray, and
Robert George, eds. The Constitution and the
Conduct of American Foreign Policy. Lawrence:
University Press of Kansas, 1996; Henkin, Louis.
Constitutionalism, Democracy, and Foreign
Affairs. New York: Columbia University Press,
1990; Henkin, Louis. Foreign Affairs and the
United States Constitution. Oxford and New York:
Clarendon Press, 1996.
—Ernest Gomez and David Schultz
commerce clause
The commerce clause is one of the most impor-
tant clauses in the entire Constitution in terms of
granting powers to Congress. Throughout Ameri-
can history, various interpretations have been at
the center of many disputes between the power of
the national versus state governments.
The commerce clause, which appears in Sec-
tion 8 of Article I of the U.S. Constitution,
is quite brief: “The Congress shall have Power . . .
To regulate Commerce with foreign Nations, and
among the several States, and with the Indian
Tribes.” Despite its brevity, the commerce clause
has been an important source of authority for
Congress. The legislative branch has used this
clause to regulate both commercial and noncom-
mercial activities, though the Supreme Court
has not always approved of all usages to which
Congress has attempted to put this authority. In
determining the permissible scope of congressio-
nal power under the clause, the Court has dealt
primarily with interstate commerce, but its
explicit language also gives Congress prerogatives
with regard to foreign commerce and commerce
concerning Native American tribes.
The impetus for including the commerce
clause in the Constitution was the economic tur-
moil that prevailed under the Articles of Con-
federation. Prior to the ratification of the
Constitution, the central government had vir-
tually no effective tools at its disposal to regulate
the economic conditions of the nation. Individual
states, however, were largely unconstrained in
the pursuit of their own independent economic
policies, even if those policies were harmful to
the national economy. Among the most harmful
were trade barriers intended to protect businesses
native to particular states, barriers that interfered
with interstate trade. The commerce clause fi rmly
removed such power from the states and lodged it
in the new federal government.
As the Court made clear in the 1824 case of
G
IBBONS V. OGDEN, 22 U.S. 1, congressional com-
merce clause authority is not strictly limited to
commerce in the sense of buying and selling goods.
Rather, it includes such things as navigation and
anything else related to commercial intercourse.
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