That was a bunch of stupid merchants, or the good senator is blowing smoke.
There is no way goods shipped intermodally (off-loaded from ships to wagons or trains or both) from New York could compete with goods shipped straight to Charleston or other ports. The cost of this intermodal shipping would make those goods higher than ones off-loaded directly at the market.
Peddle your manure somewhere else.
Walt
Do you know that for a fact, Walt? Can you offer evidence of it? If not, then you have no case. Besides, who are you to assert yourself to have a better understanding of southern trade in 1860 than Clingman?