America’s midterm elections have finished. While the full results may not be known for some time, Democrats appear to have outperformed expectations: Republicans will probably narrowly win the House, while the Senate remains too close to call. Argentina’s slum policy is a rare bright spot in the country’s politics. And why the war in Ukraine may put paid to ground-attack aircraft. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer