The presumed Republican presidential nominee, Arizona Senator John McCain, recently said that NAFTA has created jobs in the United States, and that erecting trade barriers would be self-defeating.

• 有望获得共和党候选人提名的亚利桑那州参议员麦凯恩最近说，北美自由贸易协议在美国创造了就业机会，而设置贸易壁垒将会是自取失败。