• Professor of Political Economy, Fletcher School of Law and Diplomacy, Tufts University
A section of the US-Mexico border fence is seen from Ciudad Juarez, Mexico, on Oct. 21, 2024. Guillermo Arias/AFP via Getty Images

Trump’s plans for tougher border enforcement won’t necessarily stop migrants from coming to US − but their journeys could become more costly and dangerous

Fluctuating rates of illegal migration to the US over the past few decades show that the government’s approach of trying to stop migrants with more security has not worked.
A U.S. Border Patrol officer shows how he found an undocumented Mexican immigrant under the hood of a car along the U.S.-Mexican border in March 1954. Associated Press

Trump promises to deport all undocumented immigrants, resurrecting a 1950s strategy − but it didn’t work then and is less likely to do so now

Donald Trump says he will authorize a roundup of all 11 million undocumented immigrants in the country. A 1950s program with similar goals, called Operation Wetback, offers lessons.
The pandemic and anti-immigration policies haven’t stopped migration from Central America – they’ve just made conditions at the border more hazardous. Herika Martinez/AFP via Getty Images

Migrant caravans restart as pandemic deepens the humanitarian crisis at the US‑Mexico border

COVID-19 has created new hardships for migrants while giving the Trump administration an excuse to further restrict asylum as public attention focuses on the pandemic.

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