We live in a democracy. So we vote for most of our government leaders. We vote in elections.
There are many different elections. There are local, state, and national elections in the U.S. In these elections, people run for different offices. In local elections, people vote for the mayor of a city. In state elections, people vote for the governor or congressmen. And in national elections, people vote for the president.
So who can vote? Adult citizens have the right to vote in elections. They must be at least 18 years old by election day. Each citizen votes one time. When the voting is finished, each vote is counted. The person with the most votes wins the election.