Moreover, compared to a criminal prosecution, a congressional investi
gation is usually sweeping; its issues are seldom narrowly defined, and
the inquiry is not restricted by the rules of evidence. Finally, when
Congress is investigating, it is by its own account often in an adversarial
position to the executive branch and initiating action to override judg
ments made by the executive branch. This increases the likelihood that
candid advice from executive branch advisers will be taken out of con
text or misconstrued. For all these reasons, the constitutional privilege
that protects executive branch deliberations against judicial subpoenas
must also apply, perhaps even with greater force, to Congress’ demands
for information.
The United States Court of Appeals for the District of Columbia Circuit
has explicitly held that the privilege protects presidential communica
tions against congressional demands. During the Watergate investigation,
the Court of Appeals rejected a Senate committee’s efforts to obtain tape
recordings of conversations in President Nixon’s offices. The court held
that the tapes were constitutionally privileged and that the committee
had not made a strong enough showing to overcome the privilege. Senate
Select Comm, on Presidential Campaign Activities v. Nixon, 498 F.2d
725 (D.C. Cir. 1974) (en banc). Indeed, the court held that the committee
was not entitled to the recordings unless it showed that “the subpoenaed
evidence is demonstrably critical to the responsible fulfillment of the
Committee’s functions.” Id. at 731 (emphasis added).3
Finally, history is replete with examples of the executive’s assertion of
privilege in the face of congressional requests for deliberative process
information. We have previously recounted the incidents in which
Presidents, beginning with President Washington, have withheld from
Congress documents that reflected deliberations within the executive
branch. History of Refusals by Executive Branch Officials to Provide
Information Demanded by Congress, Part II - Invocations of Executive
Privilege by Exective Officials, 6 Op. O.L.C. 782 (1982).
III. Accommodation Process
Where Congress has a legitimate need for information that will help it
legislate, and the executive branch has a legitimate, constitutionally rec
ognized need to keep certain information confidential, at least one court
3 The Supreme Court has assumed that the constitutional privilege protects executive branch delibera
tions against Congress to some degree. See United States v Nixon, 418 U S at 712 n 19. Moreover, the
Court held in Administrator of General Services, that the constitutional privilege protects executive
branch deliberations from disclosure to members of the same branch in a later administration, the Court
rejected the specific claim of privilege in the case not because the privilege was inapplicable but because
the intrusion was limited and the interests justifying the intrusion were strong and nearly unique.
See 433
U S at 446-55. Since the Court has held that the privilege protects executive branch communications
against compelled disclosure to the judicial branch and to later members of the executive branch, there is
every reason to believe that the Court would hold that it protects against compelled disclosure to Congress
157