United States
Note to would-be Farm Bill reformers everywhere: There are no U.S. Congresscritters whose constituencies include West African cotton farmers. There are no U.S. Congresscritters whose constituencies include clothing manufacturers (actually, you could almost put a period right there, they've mostly gone to China by now), garment distributors, or clothing retailers who've got even a passing desire for the price of cotton to go up. There are no U.S. Congresscritters whose constituencies could be characterized as having a broad, favorable public consensus towards furthering the goals of the World Trade Organization. This doesn't mean you can't argue against subsidies, it just means that the foregoing are always going to be weak arguments when your audience is the U.S. Congress.
Take the debate about international food aid and the Farm Bill, for example.