The Irish presidential election is held every seven years to elect the President of Ireland, who serves as the head of state. The election process involves a popular vote, where citizens aged 18 and older can cast their ballots for their preferred candidate. Candidates can be nominated by at least 20 members of the Oireachtas (the Irish Parliament) or by a petition signed by at least 4,000 eligible voters. The election is typically a significant event in Irish politics, reflecting the values and priorities of the nation.