Leopoldo López, an ardent opponent of Venezuela's socialist government facing an arrest warrant after President Nicolas Maduro ordered his arrest on charges of homicide and inciting violence, kisses his wife Lilian Tintori, before turning himself in to authorities on Tuesday. Leo Ramirez/AFP/Getty Images hide caption

itoggle caption Leo Ramirez/AFP/Getty Images

Supporters of acting President Nicolas Maduro celebrated Sunday night in Caracas, Venezuela, after the initial vote count showed him enjoying a narrow victory. Luis Acosta /AFP/Getty Images hide caption

itoggle caption Luis Acosta /AFP/Getty Images