9 Op. O.L.C. 60
Scope of Congressional Oversight and Investigative Power with Respect to the Executive Branch
Scope of Congressional Oversight and Investigative Power
With Respect to the Executive Branch
Congressional power to conduct inquiries and to exercise oversight respecting the Executive
Branch is broad and well-established. This power is not unlimited, however. Its use must be
confined to inquiries concerning the administration of existing laws or the determination of
whether new or additional laws are needed.
Congress may not conduct investigative or oversight inquiries for the purpose of managing
Executive Branch agencies or for directing the manner in which the Executive Branch
interprets and executes the laws.
The Supreme Court’s decisions in Buckley v. Valeo, 424 U.S. 1 (1976) (per curiam), and INS v.
Chadha, 462 U.S. 919 (1983), establish an area of executive authority in the interpretation
and implementation of statutes. Congress may not take action, including action in furtherance
of its inquiry and oversight powers, that interferes with that executive authority, except
through the enactment of legislation in full compliance with constitutional requirements.
March 22, 1985
M e m o r a n d u m O p i n i o n f o r t h e A t t o r n e y G e n e r a l
This responds to your request for a brief discussion of the proper scope of
Congress’ power of inquiry and oversight with respect to the Executive Branch.
It is beyond dispute that Congress may conduct investigations in order to
obtain facts pertinent to possible legislation and in order to evaluate the
effectiveness of current laws.1 This power to obtain information has long been
viewed as an essential attribute of the power to legislate, and was so treated in
the British Parliament and in the colonial legislatures in this country. See
McGrain v. Daugherty, 273 U.S. 135, 161, 174-77 (1927); see generally
Landis, Constitutional Limitations on the Congressional Power o f Investiga-
tion, 40 Harv. L. Rev. 153 (1926). Although the Constitution does not explic-
itly grant any power of inquiry to Congress, Congress asserted such a right
shortly after the adoption of the Constitution. In 1792, the House of Represen-
] In exercising its oversight function. Congress may also adopt by plenary legislation “report and wait”
provisions requiring the Executive to report to Congress in advance o f taking certain actions. See, e.g., INS v.
Chadha, 462 U.S. 919,933 n.9 (1983). Congress' power in this area is not unlimited. Legislation purporting
to render inoperative the Executive’s inherent constitutional powers, such as those related to the Presidents
role as Commander-in-Chief, for a fixed period of time would raise issues decidedly different and more
difficult to resolve than situations in which Congress legislates “waiting” periods with regard to the exercise
o f statutory power by the Executive. See generally Youngstown Sheet & Tube Co. v. Sawyer, 343 U.S. 579,
636-38 (1952) (Jackson, J. concurring).
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tatives appointed a committee to investigate a military disaster and authorized
that committee to send for necessary witnesses and documents. 3 Annals of
Cong. 490-94 (1792). It is now settled that Congress’ power to obtain informa-
tion necessary to legislate is broad.
Thus, for example, in Watkins v. United States, 354 U.S. 178, 187 (1957),
the Supreme Court stated:
We start with several basic premises on which there is general
agreement. The power of the Congress to conduct investigations
is inherent in the legislative process. That power is broad. It
encompasses inquiries concerning the administration of existing
laws as well as proposed or possibly needed statutes. It includes
surveys of defects in our social, economic or political system for
the purpose of enabling Congress to remedy them. It compre-
hends probes into departments of the Federal Government to
expose corruption, inefficiency or waste.
As the Court’s statement in Watkins suggests. Congress’ power of inquiry
regarding possible legislation extends to investigations of how well current
laws are being administered by the Executive Branch. In McGrain v. Daugherty,
273 U.S. at 161, the Court affirmed the power of a Senate committee charged
with investigating the administration of the Department of Justice under a
former Attorney General to compel the appearance of a witness.2 Finding that
the subject matter of the investigation was sufficiently related to the legislative
function of lawmaking to make the investigation proper, the Court stated:
Plainly the subject was one on which legislation could be had
and would be materially aided by the information which the
investigation was calculated to elicit. This becomes manifest
when it is reflected that the functions of the Department of
Justice, the powers and duties of the Attorney General and the
duties of his assistants, are all subject to regulation by congres-
sional legislation and that the department is maintained and its
activities are carried on under such appropriations as in the
judgment of Congress are needed from year to year.
Id. at 178.
Broad as it is, however, Congress’ power of oversight and inquiry “is not
unlimited.” Watkins v. United States, 354 U.S. at 187. As the quotation from
2
This investigation was prompted by allegations of misfeasance and nonfeasance in the Department of
Justice under Harry M. Daugherty, who served as Attorney General from March 1921 until March 1924. The
Senate appointed a committee of five senators charged with investigating, inter alia: (1) the Attorney
General's alleged failure to “prosecute properly violators of the Sherman Antitrust Act and the Clayton Act;"
(2) the Attorney General's alleged failure to arrest and prosecute certain named individuals “and their co-
conspirators in defrauding the Government;” and (3) the activities of the Attorney General and his assistants
“which could in any manner tend to impair their efficiency or influence as representatives o f the Government
of the United States.” 273 U.S. at 152-53. As part of this investigation, the Committee subpoenaed Attorney
General Daugherty's brother, who was the president of a certain bank.
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McGrain v. Daugherty suggests, the power of inquiry must be exercised “in aid
of the legislative function.” 273 U.S. at 135. In this regard, the Supreme Court
has explicitly recognized that congressional inquiries may not be used to
arrogate to Congress functions allocated by the Constitution to another branch
of government.3
In Kilboum v. Thompson, 103 U.S. 168 (1881), a House committee was
investigating the circumstances surrounding the bankruptcy of a company in
which the United States had deposited funds, focusing particular attention on a
private real estate pool that was a part of the financial structure. The Supreme
Court found that the House had exceeded the limits of its authority in this
investigation because the subject matter was in its nature clearly judicial and
therefore one in respect to which no valid legislation could be enacted. See also
Watkins v. United States, 354 U.S. at 187. Accordingly, “[l]acking the judicial
power given to the Judiciary, [Congress] cannot inquire into matters that are
exclusively the concern of the Judiciary. Neither can it supplant the Executive
in what exclusively belongs to the Executive.” Barenblatt v. United States, 360
U.S. 109, 112 (1927).4
In determining what functions fall within the Executive’s exclusive domain,
one must, of course, be sensitive to the Supreme Court’s admonition that the
Constitution does not contemplate “a complete division of authority between
the three branches.” Nixon v. Administrator o f Gen. Servs., 433 U.S. 425, 443
(1977). Rather, the Constitution “enjoins upon its branches separateness but
interdependence, autonomy but reciprocity.” Youngstown Sheet & Tube Co. v.
Sawyer, 343 U.S. 579,635 (1952) (Jackson, J., concurring). Accordingly, there
is undoubtedly a gray area in which the President’s responsibility for managing
the Executive Branch and Congress’ power of oversight conflict, and where the
respective rights and obligations of the President and Congress are unclear.
Nonetheless, Congress’ power of inquiry must not be permitted to negate the
President’s constitutional responsibility for managing and controlling affairs
committed to the Executive Branch. See Myers v. United States, 272 U.S. 52,
135 (1926). Thus, although Congress constitutionally can investigate the man-
ner in which the Executive Branch has executed existing law in order to
determine whether further legislation is necessary, it cannot conduct such
investigations for the purpose o f facilitating an ability to exercise day-to-day
control over the management of Executive Branch agencies, or otherwise to
direct the manner in which existing laws are interpreted and executed.
Two recent Supreme Court decisions establish certain clear limits on Con-
gress’ power to involve itself in the administration of the Nation’s laws. In
Buckley v. Valeo, 424 U.S. 1, 126 (1976) (per curiam), the Court ruled that all
3 The constitutionally based doctrine of executive privilege also limits Congress' ability to obtain informa-
tion from the Executive Branch. See, e.g., United States v. Nixon, 418 U.S. 683 (1974).
4 Barenblatt did not involve a dispute between Congress and the Executive. The Barenblatt Court upheld,
against statutory and constitutional objections, the contempt conviction of a witness who refused to answer
questions concerning his alleged associations with the Communist Party posed by a subcommittee of the
House Committee on Un-American Activities, which was then investigating alleged Communist infiltration
into education.
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officials who “exercise significant authority pursuant to the laws of the United
States” are “Officers of the United States,” who must be appointed in accor-
dance with the Appointments Clause, U.S. Const, art. II, § 2, cl. 2. The Court
specifically held that the interpretation and implementation of a statute “repre-
sents the performance of a significant governmental duty exercised pursuant to
a public law,” and can be performed only by an “officer of the United States.”
Id. at 141. This principle underlies Justice White’s observation:
I know of no authority for the congressional appointment of its
own agents to make binding rules and regulations necessary to
or advisable for the administration and enforcement of a major
statute where the President has participated either in the ap-
pointment of each of the administrators or in the fashioning of
the rules and regulations which they propound.
Buckley v. Valeo, 424 U.S. at 281 (White, J., concurring in part and dissenting
in part). Buckley recognizes that the Constitution precludes Congress from
participating in Executive Branch functions through appointment of the per-
sons who execute the laws.
In INS v. Chadha, the Court held that a related principle of the separation of
powers doctrine establishes that when Congress has authorized executive de-
partments to perform certain tasks, the rights and duties created by that authori-
zation or by its execution may not be altered by the actions of a congressional
committee or other agent or arm of Congress. Any measure that alters those
rights and duties must be approved by each House of Congress and presented to
the President. 462 U.S. at 951. Together, the principles of Buckley and Chadha
establish an area of executive authority interpreting and implementing duly
enacted statutes that cannot be displaced by the actions of Congress except
through the legislative process of enacting legislation subject to the President’s
veto.
Thus, the oversight functions of a congressional committee must be evalu-
ated in relation to the President’s longstanding and pervasive responsibility
over the management and control of affairs committed to the Executive Branch.
See Myers v. United States, 272 U.S. at 135. The prerogatives and responsibili-
ties of the President to exercise and protect his control over the Executive
Branch are based on the fundamental principle that the President’s perfor-
mance of his constitutional duties must be free of certain types of interference
from the coordinate branches of government. The “executive Power” is vested
in the President, U.S. Const, art II, § 1, cl. 1, and he must “take Care that the
Laws be faithfully executed,” id. § 3. In order faithfully to fulfill these respon-
sibilities, the President must be able to delegate the management and control of
executive departments to subordinate officials in the knowledge that they will
remain faithful to his commands. To the extent that a committee of Congress
attempts to interfere with the President’s right to make policy decisions and to
manage the Executive Branch pursuant to statutory authorization, the Legisla-
tive Branch limits the ability of the President to perform his constitutional
63
function. Congress may do so, of course, but only in the manner authorized by
the Constitution: plenary legislation presented to the President and subject to
his veto power. It may not vest in its committees or its officers the power to
supplant the President’s executive functions, and may not do so under the guise
of its investigative authority.
R a l p h W . T a r r
Acting Assistant Attorney General
Office o f Legal Counsel
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