Summary

Pierce Butler Sinclair v. United States — Opinion of the Court

Congress has plenary power to dispose of and to make all needful rules and regulations respecting the naval oil reserves, other public lands and property of the United States. And undoubtedly the Senate had power to delegate authority to its committee to investigate and report what had been and was being done by executive departments under the Leasing Act, the Naval Oil Reserve Act, and the President's order in respect of the reserves and to make any other inquiry concerning the public domain.
Source: Wikisource

Pierce Butler Sinclair v. United States — Opinion of the Court

Neither Senate Joint Resolution 54 nor the action taken under it operated to divest the Senate or the committee of power further to investigate the actual administration of the land laws. It may be conceded that Congress is without authority to compel disclosures for the purpose of aiding the prosecution of pending suits; but the authority of that body, directly or through its committees, to require pertinent disclosures in aid of its own constitutional power is not abridged because the information sought to be elicited may also be of use in such suits.
Source: Wikisource

Pierce Butler Sinclair v. United States — Opinion of the Court

It would be quite unreasonable, if not indeed absurd, for the Senate to direct investigation by the committee and to allow its power to summon and swear witnesses to lapse. The context and circumstances show that Resolution 294 was intended to be kept in force. See School District No. 11 v. Chapman (C. C. A.) 152 F. 887, 893, 894.
4. Appellant earnestly maintains that the question was not shown to be pertinent to any inquiry the committee was authorized to make. The United States suggests that the presumption of regularity is sufficient without proof.
Source: Wikisource

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