The measure, which passed with bipartisan support and minor changes, now heads back to the House. It is just the second legislative victory for the new Republican-controlled Congress.

Senate Republicans handed President Donald Trump a victory in the administration’s fight against the fentanyl epidemic with the passage of legislation that imposes steep penalties on smugglers caught moving fentanyl analogs into or throughout the United States.

The president had campaigned on invoking the centuries-old law to remove illegal migrants from “enemy nations” if they are deemed a threat to the US — a move that would bypass