text: In May 2023, O'Neill attended the coronation of King Charles III, saying, "Well obviously I wanted to be here. We live in changing times and it was the respectful thing to do, to show respect and to be here for all those people at home, who I had said I would be a first minister for all. Attendance here is about honouring that and fulfilling my promise."
  Under her leadership, Sinn Féin has led most NI opinion polls for the 2024 United Kingdom general election.
  First Minister (2024–present)
  On 30 January 2024, the Democratic Unionist Party announced their willingness to return to power-sharing. This paved the way for O'Neill, as nationalist leader to be sworn in as First Minister of Northern Ireland. O'Neill assumed office on 3 February 2024, becoming the first ever Irish nationalist, republican or Catholic to hold that position. In her Stormont acceptance speech, she again broke with republican tradition, by using the term, Northern Ireland. She pledged in her speech to represent all and to show respect to the royal family. On 5 February, O'Neill held meetings with Rishi Sunak, Chris Heaton-Harris, Leo Varadkar, and Ministers of the Northern Ireland Executive. High on the agenda is the request for additional financial support for the Northern Ireland government in excess of the £3.3 billion package already pledged from the HM Treasury.
  Libel action against John Carson