In the 1840s, England's Corn Laws (corn being a generic term for wheat, barely, and rye) were under a hot debate. The Laws issued a series of tariffs ensuring bread prices stay two to three times higher than they were 100 years ago. But as the Industrial Revolution pushed forward, mill owners knew cheaper food was crucial to feed their employees. There thus arose a battle between the landed aristocracy, arguing mercantilism and questioning this "new" economy, and manufacturers, citing Adam Smith and the logic of free trade. Thankfully the latter, led by Richard Cobden, won the day.
Manufacturing, once a great advocate of free trade, now in the West is its enemy. And if Lou Dobbs, a vocal opponent of free trade on the grounds that it hurts factories, lived a century and a half ago, he would be raging against the very sector he so persistently defends today.