“A federal judge on Wednesday ordered Texas to remove by Sept. 15 the floating border buoys it had placed along its river border with Mexico to deter migrants from crossing.

U.S. District Judge David A. Ezra ruled that the buoys obstructed the flow of the Rio Grande River — which separates the U.S. from Mexico — and likely required congressional authorization and a federal permit, as dictated by the Rivers and Harbors Appropriation Act of 1899.”