The Morill tariff wasn't passed until March 1861, after the South had seceded. Williams' failure as an historian rears its ugly head yet again.
Kinda fun when the South paid 75% of the taxes now wasn`t it.
The Morrill Tariff, was passed by the U.S. House of Rep. during the 185960 session of Congress, and was the cornerstone of the Republican Partys economic policy. It then passed the U.S. Senate, signed into law by Buchanan on March 2, 1861, two days before Lincolns inauguration, where he threatened war on any state that failed to collect the new tax.
Uh, yeah...so the law was presented, written and debated far before any State decided to secede because of slavery. Weird huh.