And now they are coming for the visa overstays. In nearly every debate centered around Trump's border wall, lawmakers from both sides have pointed to visa overstays as the "real" problem. According to the last figures published by the Department of Homeland Security in 2017, there were 701,900 overstays on non-immigrant visas. The planned Trump crackdown, however, does not target all overstays, nor does it punish all countries with high rates of overstays equally. The presidential memorandum states : "twenty countries have overstay rates of more than 10 percent, some with rates as high as 20, 30 or 40 percent."

Source: CNN April 24, 2019 15:33 UTC