"
This is a stunningly stupid idea on many levels.
Let's start with the most obvious: Tariffs are taxes on Americans. Making it more expensive to import goods from Mexico is a pretty roundabout way to get Mexico to change its border policies, but it's a very direct tax increase for American businesses and consumers. Last year, Americans imported more than $346 billion in goods from Mexico, so a 25 percent tariff would amount to an $87 billion tax increase.
Second, the number of undocumented immigrants coming to the United States from Mexico has been
declining for years, and many have returned home already. In 2016, there were 1.5 million fewer unauthorized Mexicans living in the U.S. than there were in 2007, according to data from the Pew Research Center. Overall, the number of undocumented immigrants in the U.S. has declined from 12.2 million in 2007 to about 10 million last year, Pew says.
Perhaps Trump means that Mexico should curb the flow of migrants passing through the country on their way to the United States—specifically, the migrants fleeing violence in Central America. But those are not, by and large, illegal immigrants; they're coming here to legally present themselves as candidates for asylum.
Third, even if Mexico could be convinced to act, somehow, by the tariff threat, the White House's demands are absurd. The tariffs are set to ratchet up by 5 percent every month between June and October, but what sort of comprehensive immigration policy could be implemented in a matter of weeks? Trump says the tariffs will stay in place until the "problem is remedied," but what does that mean? Illegal immigration over the southern border is already near historic lows, and it's not at all clear what metric the Trump administration will use to judge whether Mexico has done as it is being told. Mexican officials are being told to fix a problem they didn't cause, to do it in a matter of weeks, and without knowing how their performance will be measured.
Fourth, if the tariffs work the way Trump think they will, they will make illegal immigration worse. Think about it like this: Trump believes tariffs harm the economy of the country exporting goods to the United States (which is true, though importers and consumers in the U.S. are hurt worse). So he's implementing a strategy that's designed to harm Mexico's economy, but what happens when Mexico's economy weakens? More Mexicans
try to cometo the United States!
Fifth, Trump's out-of-nowhere tariff threat is
rattling the stock market, again.
Sixth, Trump is complicating the passage of his much touted United States–Mexico–Canada Agreement (USMCA) with these new tariff threats. Earlier this year, Sen. Chuck Grassley (R–Iowa) made it clear that the Senate Finance Committee, which handles trade issues and which he chairs, would not approve the USMCA deal until the Trump administration withdrew the tariffs on steel and aluminum imported from Canada and Mexico. Trump backed down and lifted those tariffs two weeks ago, apparently clearing the way for the USMCA to pass Congress."