Restoring the power-sharing government and solving the future of the Irish border after Brexit.
No small challenge for Boris Johnson, then, as he made his first visit to Northern Ireland as Prime Minister.
He held a private dinner last night with senior figures from the Democratic Unionists, much to the annoyance of the other main parties.
Mr Johnson insisted he was acting with “complete impartiality”, a claim immediately dismissed by Sinn Fein as “laughable”.