Venezuelan opposition leader Maria Corina Machado, from left, Lilian Tintori, wife of jailed opposition leader Leopoldo Lopez and Leopoldo's mother Antonieta Mendoza, attend to a rally against Venezuela's President Nicolas Maduro in Caracas, Venezuela on Monday, April 24, 2017.The opposition's main demands are for elections, the release of jailed activists and autonomy for the opposition-led congress. But protests are also fueled by the crippling economic crisis in the oil-rich nation of 30 million people.