The Trump administration on Monday announced it would impose sanctions on Venezuela’s state-owned oil monopoly, the most aggressive move to date in President Trump’s challenge to Nicolás Maduro, the president of Venezuela. Administration officials indicated that Mr. Trump was still not ruling out military intervention in his efforts to pressure Mr. Maduro to step down. “The president has made it very clear on this matter that all options are on the table,” John R. Bolton, the national security adviser, told reporters at the White House. The Trump administration has been urging fellow members of the Organization of American States to recognize Juan Guaidó, the head of the National Assembly, as Venezuela’s new president. Steven Mnuchin, the Treasury secretary, said the United States would use “the full suite of its diplomatic and economic tools to support interim President Juan Guaidó, the National […]