An opponent of the Nicolas Maduro government holds up a homemade poster from which hang empty boxes of medication with a message that reads in Spanish: "Ruin or death" as she waits for the arrival of opposition leader Juan Guaidó to lead a rally in Caracas, Venezuela, Saturday, May 11, 2019. Guaidó has called for nationwide marches protesting the Maduro government, demanding new elections and the release of jailed opposition lawmakers. (AP Photo/Martin Mejia)