WASHINGTON (Reuters) - When U.S. national security adviser John Bolton branded Venezuela as part of a hemispheric "troika of tyranny" in a speech in November, the Trump administration was still struggling to decide how far it would go in confronting the country's socialist president, Nicolas Maduro.
But what has taken shape in recent days is a sharply more aggressive approach based on President Donald Trump's full-throated backing for opposition leader Juan Guaido and bolstered by a coordinated diplomatic response with many of Venezuela's neighbours, who rapidly followed suit in withdrawing recognition of Maduro's rule.