In the oil-rich Venezuelan state of Zulia, Maria Corina Machado, the face of the opposition to President Nicolas Maduro's regime, urges her supporters to vote for Edmundo Gonzalez Urrutia in the July 28 election. Standing before a crowd of thousands in the heat of Maracaibo, the country's "oil capital" and one of the hardest hit by the crisis, Machado has chosen yet another candidate to subtitute her after a court disqualified her from the presidential race. IMAGES AND SOUNDBITES