But in case you missed the class on tariffs, here is Calhoun's role in the matter:
In an elaborate scheme to prevent passage of still higher tariffs, while at the same time appealing to Andrew Jacksons supporters in the North, John C. Calhoun and other southerners joined them in crafting a tariff bill that would also weigh heavily on materials imported by the New England states.
It was believed that President John Quincy Adamss supporters in New England, the National Republicans, or as they would later be called, Whigs, would uniformly oppose the bill for this reason and that the southern legislators could then withdraw their support, killing the legislation while blaming the mercantilists.
What that plan was, Calhoun explained very frankly nine years later, in a speech reviewing the events of 1828 and defending the course taken by himself and his southern fellow members. A high-tariff bill was to be laid before the House.
It was to contain not only a high general range of duties, but duties especially high on those raw materials on which New England wanted the duties to be low. It was to satisfy the protective demands of the Western and Middle States, and at the same time to be obnoxious to the New England members. The Jackson men of all shades, the protectionists from the North and the free-traders from the South, were to unite in preventing any amendments; that bill, and no other, was to be voted on. When the final vote came, the southern men were to turn around and vote against their own measure. The New England men, and the Adams men in general, would be unable to swallow it, and would also vote against it.
Combined, they would prevent its passage, even though the Jackson men from the North voted for it.
The result expected was that no tariff bill at all would be passed during the session, which was the object of the southern wing of the opposition. On the other hand, the obloquy of defeating it would be cast on the Adams party, which was the object of the Jacksonians of the North. The tariff bill would be defeated, and yet the Jackson men would be able to parade as the true friends.
From Wikipedia in case you have interest.
So, as you admit, he drafted the bill (regardless of intent). Just like Kerry voting for the war before he voted against it. Thank you.