protected interests; that at the same time the measure would serve to avert the dangers threatening the Union, — for he feared seriously, that if in some way a conflict of arms should take place in South Carolina, other Southern States might, by the contagion of excitement following the shedding of blood, be drawn into revolt and civil war. His biographer, Epes Sargent, who had the advantage of Clay's supervision of his work, mentions in addition a secret and very probable motive: “An invincible repugnance to placing under the command of General Jackson such vast military power as might be necessary to enforce the laws, and put down any resistance to them in South Carolina, and which might extend he knew not where. He could not think, without the most serious apprehensions, of intrusting a man of his vehement passions with such an immense power.” These apprehensions became the more intense as he thought “he perceived, with some, a desire to push matters to extremities.” Finally his constant inclination to lead in everything naturally pushed him forward.
But why did Calhoun assent to Clay's compromise measure rather than wait for the much more thorough tariff bill of Verplanck? Although as earnest in his nullification movement as ever, Calhoun had begun to be seriously troubled as to the outcome of it in case things were carried to extremes. The story that Jackson had threatened to cause Calhoun to be arrested and hung for treason
