Immigration policy is uncertain now that Title 42 has been lifted

For the last three years, a previously obscure emergency public health order allowed politicians to temporarily sidestep one of the most complicated issues in American politics — migration at the United States' southern border. Former President Donald Trump invoked Title 42 in the spring of 2020 as COVID-19 cases were spreading. And that meant that border agents could quickly process and expel migrants. But as COVID cases dipped, the rule remained in place, allowing officials to control the flow of migrants.

At 11:59 pm last Thursday, the policy expired.

Now,...