A presidential election is a formal process in which citizens vote to choose their country's leader, known as the president. This event typically occurs every four years in many countries, including the United States. Candidates from various political parties campaign to gain support from voters, presenting their ideas and policies. During the election, voters cast their ballots, and the candidate with the most votes is declared the winner. The election process often includes debates, rallies, and advertisements to inform the public. Once elected, the president serves a fixed term, making important decisions that affect the nation.