The world this week
Politics Juan Guaidó, who is recognised as interim president of Venezuela by many democracies, appeared outside an air-force base in Caracas and urged the armed forces to overthrow the socialist dictatorship of Nicolás Maduro. Leopoldo López, an opposition figure kept under house arrest by the regime, appeared with Mr Guaidó after being freed by security personnel. America reiterated its support for Mr Guaidó. Backed by Russia and Cuba, Mr Maduro said he had defeated an attempted coup. Amid more protests, Mr Guaidó called for strikes to topple the government. Unions staged a national strike in Argentina to protest against the austerity policies of Mauricio Macri, the president. Mr Macri’s popularity has taken a dive of late, and he is up for re-election in October. Cristina Fernández de Kirchner, a spendthrift populist ex-president,…