The prospect of a Central American Free Trade Agreement (CAFTA) has stirred up a theme that regularly arises in debates about U.S. trade agreements with developing countries. On one hand labor unions, human rights groups, and environmentalists argue that trade agreements should have provisions ensuring that developing countries enforce their labor and environmental standards so as to prevent them from undercutting U.S. labor by having lax standards. The American public in numerous polls has also supported them by overwhelming majorities. On the other hand the Bush administration, most Republicans in Congress, and most international corporations have generally resisted this idea, though they have shown some willingness to negotiate on the issue.