=§ 89. Slavery attacked in Congress.=--A series of attacks upon slavery now began in Congress. To many persons the fact that the institution was recognized in the Constitution seemed sufficient ground for protecting it. No doubt was entertained of the power of Congress to confiscate the ordinary property of rebels; but such persons deprecated all interference with slaves, who were supposed to possess a kind of constitutional immunity, wholly unknown to and above all other property.[314] In the minds of antislavery men, "no greater fallacy was ever asserted than this attempt thus to link 'the institution' and the Constitution indissolubly together, to engraft the former upon the latter, to make slavery the corner stone of the nation, to be guarded and protected by the government."[315] Nevertheless, the existence of slavery in the Border States which had remained loyal made Congress very cautious as to general enactments. On the other hand, no form of property held by rebels was so vulnerable; slaves could not only be seized as the lines of the Northern troops extended, they could, by actual law or by kindly reception, be invited across the lines. Both the passions aroused by civil war and a humane pity for the slave urged the government to deprive the master engaged in secession of the services of his slave. [Sidenote: Confiscation Bills.] =§ 90. Confiscation bills.=--July 18, 1861, Mr. Chandler and Mr. Trumbull introduced general confiscation bills in the Senate; they were both referred to the Committee on the Judiciary. In the discussion Mr. Trumbull offered as an amendment "that whenever any person claiming to be entitled to the service or labor of any other person, under the laws of any State, shall employ such person in aiding or promoting any insurrection, or in resisting the laws of the United States, or shall permit or suffer him to be so employed, he shall forfeit all right to such service or labor, and the person whose service or labor is thus claimed shall be thenceforth discharged therefrom, any law to the contrary notwithstanding."[316] The proposition aroused considerable opposition, since it was a step far in advance of anything which had yet been done against the interests of slavery, and any proposition which advocated "an act of emancipation," however limited and qualified, was the signal for hot discussion. The opposing party announced that "nothing will come of it but more irritation,"[317] and in each crisis statesmen should "observe all possible toleration, all conciliation, all liberality."[318] Mr. Wilson upheld the opposite opinion, and thought that the time had come when this government, and the men who are in arms under the government, should cease to return their fugitive slaves to traitors.