Trump absolutely can make Mexico pay. It would do this through a “border adjustment” that exempts exports while taxing imports. So unlike tariffs, a border adjustment should be able to pass muster with the World Trade Organization. But with the border adjustment, Mexico would have no recourse to complain, because such a measure is global in nature and would affect all U.S. trading partners equally. So yes, thanks to the border adjustment, Donald Trump can indeed make Mexico pay for the BLEEP-ing wall.

Source: Washington Post January 17, 2017 15:45 UTC