CH. X.]
THE SENATE.
259
but they deem their honour and their reputation more safe in the hands of their brother officers, than in any merely civil tribunal. Indeed, in military and naval affairs it is quite clear, that the senate could scarcely possess competent knowledge or experience to decide upon the acts of military men; so much are these acts to be governed by mere usage, and custom, by military discipline, and military discretion, that the constitution has wisely committed the whole trust to the decision of courts-martial.
§ 791. A question arose upon an impeachment before the senate in 1799, whether a senator was a civil officer of the United States, within the purview of the constitution; and it was decided by the senate, that he was not;[1] and the like principle must apply to the members of the house of representatives. This decision, upon which the senate itself was greatly divided, seems not to have been quite satisfactory (as it may be gathered) to the minds of some learned commentators.[2] The reasoning, by which it was sustained in the senate, does not appear, their deliberations having been private. But it was probably held, that "civil officers of the United States" meant such, as derived their appointment from, and under the national government, and not those persons, who, though members of the government, derived their appointment from the states, or the people of the states. In this view, the enumeration of the president and vice president, as impeachable officer's, was indispensable; for they derive, or may derive, their