Last June, Jeffrey Donaldson, the DUP leader, answered questions at an event in Dublin’s Merrion Hotel organised by Co-Operation Ireland. The other speakers on the night were the Minister for Further and Higher Education, Fine Gael’s Simon Harris; Fianna Fáil Minister of State, Dara Calleary and Sinn Féin’s housing spokesperson, Eoin Ó Broin. During that Dublin gathering, Sir Jeffrey made it clear that although his salary comes from his job as the Lagan Valley MP in Westminster, he is a committed devolutionist. He was optimistic that power-sharing would be restored in Stormont by the autumn.  The feedback from the 60…