Opposition leader Juan Guaido calls to rally in Caracas President of the Venezuelan National Assembly Juan Guaido addresses the press in Caracas during a demonstration in which he asks to maintain pressure in the streets against socialist leader Nicolás Maduro, in the face of the decline of anti-government demonstrations some five months after proclaiming himself president in charge of Venezuela with the support of a few dozen countries. Some 4,000 demonstrators responded to his call to march in Caracas in rejection of the "human rights violations" of what he calls the "dictatorship." IMAGES AND SOUNDBITES