By Miriam Jordan, The New York Times

President Trump has tried to halt the arrival of undocumented migrants by beefing up border security, limiting who qualifies for asylum and, for a while, separating migrant children from their parents at the border. However, figures released Tuesday suggest that those measures are failing to deter tens of thousands of migrants from journeying over land to the United States.

Indeed, after shriveling to the smallest number in five decades, arrests of migrants at the southern border — the best indicator of how many undocumented people are entering the United States — are soaring again.

Border authorities detained nearly twice as many migrants — 268,044 — in the first five months of the fiscal year that started in October than were arrested in the same period the previous year.

To understand what’s happening, it’s important to look at who is coming, what is driving them and how the answers to those questions have changed over the years.

Read more here.

Photo: U.S. Customs and Border Protection

More Migrants Are Crossing the Border This Year. What’s Changed?