MOGADISHU — A widening political feud is taking shape inside Somalia’s federal leadership, with a struggle over Galmudug’s next president exposing fault lines around President Hassan Sheikh Mohamud’s inner circle. Sources familiar with the talks told Axadle that shortly after returning from Djibouti, where he attended the inauguration ceremony of President Ismaïl Omar Guelleh, President Hassan Sheikh privately urged one of his close political allies — a businessman described as holding substantial influence over revenues…