Marco Rubio, a Republican senator from Florida, said last month that for years he sought a peaceful solution to Venezuela, but now there’s a “very strong argument” that it’s a security threat to the region and the U.S. that calls for the use of the American military.

This month, speaking in Cucuta, the Colombian border town that’s the biggest crossing point for migrants, the secretary-general of the Organization of American States, Luis Almagro, said military intervention shouldn’t be ruled out, though he later suggested he’d been misunderstood.

Trump himself hasn’t walked anything back. On Tuesday at the United Nations, he told reporters who asked him about military intervention that he had no intention of broadcasting his plans, adding, “It’s a regime that frankly could be toppled very quickly by the military, if the military decides to do that.”

Fernando Cutz, who served as adviser on South America until last year on the National Security Council, said at Washington’s Wilson Center on Monday that a multilateral military intervention could be the best solution for Venezuela.