Opposition leader Juan Guaido declared himself the interim president last week and has urged citizens to challenge Maduro with walkouts Russia is one of the staunchest supporters of Maduro and has offered to mediate MOSCOW: Venezuelan President Nicolas Maduro says he is willing to negotiate with the country’s opposition. Maduro’s remarks in an interview with Russian state-owned RIA Novosti news agency on Wednesday came amid a dire political crisis in Venezuela. Opposition leader Juan Guaido declared himself the interim president last week and has urged citizens to challenge Maduro with walkouts on Wednesday. Maduro told RIA Novosti that he is “willing to sit down for talks with the opposition for the sake of Venezuela’s peace and its future.” Maduro said the talks could be held with mediation of other countries. Russia is one of the staunchest supporters of Maduro and has offered to mediate.