Alexis’s viewGhana’s president gave a rare insight this week into what it is like to lead an African government hit by the shuttering of Washington’s international aid agency.Accra factored an average of $154 million a year from USAID into government budgets, of which nearly half went into “critical areas” of its health system, President John Dramani Mahama revealed at London’s Chatham House think tank. He tapped a government health fund to rele…