WASHINGTON — Secretary of State Marco Rubio gave a full-throated defense Wednesday of President Donald Trump’s military operation to capture then-Venezuelan President Nicolás Maduro, while explaining to U.S. lawmakers the administration’s approach to Greenland, NATO, Iran and China. In the first public hearing since the Jan. 3 raid to depose Maduro, Rubio said Trump had acted to take out a major U.S. national security threat in the Western Hemisphere. “We’re not going to have this thing turn around overnight, but I think we’re making good and decent progress,” Rubio said. As Trump once more threatens Iran with military action, Rubio said there was no current plan to attack. “Venezuela may require U.S. and international oversight to ensure these elections are indeed free and fair,” he said.