On Tuesday morning, opposition leaders in Venezuela carried out their boldest attempt yet to wrestle power away from the embattled President Nicolás Maduro. Juan Guaidó, the head of the National Assembly and the self-proclaimed “legitimate president” of Venezuela (who has the backing of over 50 countries, including Brazil and the U.S.), called for an armed national uprising to oust Mr. Maduro.
Protests kicked off in Caracas—sparking confrontations which resulted in four deaths, as of Thursday afternoon—but at the critical moment, security forces impeded Mr. Guaidó from marching on the presidential palace...