Biden slips into political quicksand amid Haitian migrant buildup

The mass of thousands of Haitians at the U.S. southern border has put the Biden administration in the exact place it’s tried to avoid: knee deep in immigration politics.

In the past 24 hours, the White House has responded to images and videos of aggressive tactics used by Border Patrol agents to corral those migrants by supporting an internal investigation into the matter. What it hasn’t done, yet, is figure out a solution to the crowding and sanitary issues arising in what’s become a makeshift encampment — or stop its policy of...