At the center of the intrigue was an urbane Charlestonian named William Henry Trescot, who had been serving for the past six months as assistant secretary of state. During most of that time, he had more or less run the State Department. The venerable secretary himself, Lewis Cass, was a crumbling monument to another age whom Buchanan had appointed as a sop to the North, which considered Cass a hero for his gallantry in the Michigan Territory during the War of 1812. Trescot was the administration's only high-ranking South Carolinian; he was also perhaps its only truly industrious and enterprising member. Two days after the presidential results came in, he called on Secretary Floyd at the War Department, bearing a purchase order for ten thousand muskets to be sent to his native state, which Floyd was happy to execute. As the Fort Moultrie confrontation began to take shape, Trescot took it upon himself to open a channel of private communication with South Carolina's governor, William Henry Gist, whom he kept apprised of the Buchanan administration's plans. ...
Floyd himself, while believing in the justice of slavery and loathing the Black Republicans, may not yet have been fully convinced that secession was in the South's best interests. Still, if hostilities did break out, he was in little doubt as to which side he would support. It was not difficult for the glib Trescot to maneuver him—and, through him, the president.
Buchanan.