To run for president in the United States, a prospective candidate must first meet the three Constitutional requirements. The candidate must then form a platform on which to campaign and secure the nomination of his party through the generation of public support that results in voter recognition at caucuses and primary elections.
According to the U.S. Constitution, there are only three eligibility requirements for those interested in running for election: A prospective candidate must be at least 35 years of age, must be natural born citizen of the United States and must have lived in the country for at least 14 years. The most successful presidential candidates have a solid core of goals to which they aspire in order to move the nation forward, which is known as a platform. Candidates then campaign in order to communicate the message of their platform.
Theoretically, the candidate whose political platform resonates with the majority of citizens secures the nomination of his party and ultimately the population at large, as well as the electoral college. Communicating a platform to as many people as possible in an effective manner is very expensive, however, which also requires candidates to secure funds through campaign donations in order to run a successful bid for the presidency.