Northern Ireland Makes History as Sinn Fein Leader Takes Office On Saturday, Michelle O’Neill made history as the first Sinn Fein member to assume the role of Northern Ireland's first minister. This landmark moment marks a significant shift in the region's political landscape, as it reestablishes a power-sharing government. O'Neill's leadership reflects the changing dynamics following the Good Friday Agreement and the evolving role of Sinn Fein from its historical ties to the Irish Republican Army. The move signals a commitment to reconciliation and a forward-looking approach.