The forces behind Venezuela's Maduro-Guaido power struggle

By declaring himself acting president, Venezuela's opposition leader Juan Guaido sparked a leadership battle with the head of state, Nicolas Maduro.Maduro's most significant domestic backing comes from the military high command, which has repeatedly affirmed its loyalty to him.Of 32 government ministers, nine are from the military and control key portfolios such as defense, interior, agriculture and food, as well as the state oil company PDVSA -- vital in a country that brings in 96 percent of i