The United States elects a president every four years on the first Tuesday of November. To run for president, one must be at least 35 years old, a natural born U.S. citizen, and have lived in the country for at least 14 years. Candidates campaign by giving speeches, shaking hands, running ads, and participating in debates in their effort to win the majority of electoral votes, which are allotted based on each state's population. On January 20 following the election, the winner is sworn in as president during a ceremony in Washington D.C. and will serve a four-year term residing in the White House.