DAVID MASTIO: Deporting one million undocumented immigrants a year is much easier than you think.

The Trump administration has powerful winds at its back that might allow it to launch roundups and deportations at an even faster pace. Computer technology and surveillance have both advanced markedly since 2009. There are more police than there were 15 years ago and crime is much lower — allowing more boots on the ground to enforce immigration laws if local police cooperate as they do in much of the country, and which Trump says he will encourage. The economy is much more digitized, making it harder to live a life where your identity is off the grid.

And there are powerful tools to make the United States much less welcoming to undocumented immigrants that the U.S. has never wielded. For instance, undocumented migrants paid federal, state and local governments nearly $100 billion in taxes in 2024, billions of which is returned to them in refunds fueled by tax breaks targeted at low-income earners. The U.S. could require proof of legal presence to pay refunds and hold the money until the immigrants agree to return to their home countries. Companies could be required to provide proof of legal presence for each employee whose salary they claim as an expense on their taxes. Such a move would hit farmers and hotels where undocumented workers frequently work, as each is dependent on undocumented migrants for workers, and the salaries of which are deducted on their taxes.

Donald Trump’s plans for dealing with undocumented immigration are big, and they could be undone by the competence problems that were rife in his last administration. But they are not as unrealistic as his critics proclaim.

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