Biden’s Plan to End the Border Crisis Is Already Working

Since President Joe Biden took office in January 2021, United States Border Patrol has had about 4.7 million encounters with about three million individual illegal crossers along the Southwest border.

It is a chaotic mess. Border Patrol is overwhelmed. Migrants are dying en route or perishing at the hands of smugglers and cartels. But that chaos is already dramatically on the decline, as President Biden’s Jan. 5 immigration actions were the first major step in decades to get the border under control.

Biden announced that immigrants with U.S. sponsors from...