The first Congressional work on the next farm bill is starting. This piece focuses on what the cotton growers want. Here's the Economic Research Service's backgrounder (seems to me when I started work there were maybe 100,000 cotton farms, in 2007 it was down to 18,000, no doubt fewer now.
A quote: "Trade is particularly important for cotton. About 30 percent of the
world's consumption of cotton fiber crosses international borders before
processing, a larger share than for wheat, corn, soybeans, or rice.
Through trade in yarn, fabric, and clothing, much of the world's cotton
again crosses international borders at least once more before reaching
the final consumer."