Less than a week into the job, President Trump on Thursday raised the specter of a trade war with America’s third-largest partner, Mexico, as the White House warned that the United States could impose a 20 percent tariff on Mexican imports.
This absurd threat, issued as a proposal to cover the cost of a border wall, came just hours after President Enrique Peña Nieto of Mexico canceled a visit to the United States. The visit was supposed to improve the relationship between the two countries, deeply strained by Mr. Trump’s relentless scapegoating of Mexicans during his presidential campaign. But Mr. Peña Nieto decided he’d heard enough after Mr. Trump issued executive orders on Wednesday to begin rounding up unauthorized immigrants and building his border wall.
The tariff tantrum was the latest in a head-spinning torrent of lies, dangerous policy ideas and threats from the White House since Mr. Trump was sworn in last Friday. They have underscored just how impulsive and apparently ignorant the new occupant of the Oval Office is of international economic and security relationships that serve American interests. His advisers appear unwilling to rein in his impulses or, as in the case of the tariff, hapless as they struggle to tamp them down.
It’s hard to tell whether the animus Mr. Trump has conveyed toward immigrants, particularly Mexicans, is deeply felt, or if he simply came to recognize how powerfully it would appeal to voters disaffected by an uneven economic recovery and the nation’s demographic changes.
But allowing this view to drive trade and foreign policy toward Mexico could have disastrous consequences for workers and consumers in both countries, given how tightly intertwined the two economies have become since the North American Free Trade Agreement went into effect in 1994.
Nafta eliminated most tariffs and other trade barriers among Canada, Mexico and the United States, creating a continent-size market. The agreement led to production chains for cars, planes and other items that straddle borders and provide millions of jobs. Work that requires cheaper labor typically occurs in Mexico, where earnings are lower, while design, engineering and advanced manufacturing tends to take place in Canada and the United States.
Imposing a tariff on Mexico would mean pulling out of Nafta, a move that would severely disrupt the flow of parts and goods across North America and stall production in factories in the United States and Canada. It also could lead to shortages of fresh vegetables and fruits in American grocery stores and drive up the cost of many other consumer goods from Mexico. Mexico’s economy, which is hugely dependent on American trade, would be devastated. But American businesses and workers would stand to suffer immediate harm as well. Mexico would retaliate with tariffs of its own. And no matter how Congress tried to structure the tariff, which would require legislation, it would probably still violate World Trade Organization rules.
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