DARIEN GAP, Panama—Thousands of migrants streamed into Panama through the treacherous jungle of the Darién Gap last week, with many fearing that the route will be shut down, thereby dashing their hopes of reaching the United States.
The influx of migrants intent on crossing the U.S. southwest border unlawfully came as Panama’s new president, Raúl Mulino, took steps to stop the flow through the Darién Gap.
On July 1, the same day that he took office, Mr. Mulino forged a deal with the United States to pay for repatriation flights for migrants entering Panama on their way to the United States….