Consider, too, the position of a Senator. Elected by the Legislature of his State, he sits for six years in this body, sharing its labors, its duties, its trusts. His official term is the longest known to the Constitution. The Representative, and the President himself, pass away; but the Senator continues. In ordinary times his responsibilities are large; but now they are larger still. On every question of legislation, touching our multitudinous relations, touching our finances, our army, our navy, touching, indeed, all the issues of peace and war,--also on every question of foreign policy, whether in treaties or in propositions disclosed in executive session,--and again, on all nominations by the President, judicial, executive, military, and naval,--the Senator is called to vote; and he is free to join in debate, and to influence the votes of others. With these great responsibilities are corresponding opportunities of knowledge with regard to the counsels of the Government. These doors are often closed against the public, but they are never closed against him. This position of the Senator gives to the question of his loyalty an absorbing interest. Surely it is of no small moment to know if there be among us any person unworthy of all this confidence. The facts in the present case are few, and may be easily stated; for, beyond certain presumptions, they are of public notoriety, and above all doubt. Indeed, the whole case can be presented as plainly and as unanswerably as a mathematical proposition or a diagram in geometry. * * * * * On the 6th of November of the last year, Abraham Lincoln of Illinois was elected President by the popular vote. The election was in every respect constitutional; and yet, in violation of all the obligations of the Constitution, and all the duties of patriotism, a movement was instantly organized in the Slave States to set aside this election, by acts of conventions, if possible, but by violence, if necessary. The movement began in South Carolina, a State always mad with treason; and before the 1st of January then next succeeding, this State formally separated from the Union, renounced the National Government, and ranged in open rebellion. Georgia, Alabama, Mississippi, and Louisiana followed; and the precise object of this rebellion was to form a new government, with Slavery as its corner-stone. The Senators of these States, one after another, abandoned their seats in this Chamber, announcing a determination to seek their respective homes, and leaving behind menaces of war, should any attempt be made to arrest their wicked purposes.