The Electoral College is the body of people who elect the president and vice president of the United States. Many U.S. citizens are confused by this system, which dates back to the creation of the U.S. Constitution. When citizens vote for a presidential candidate, they're actually voting for an elector who will cast a vote for their state for that candidate in the Electoral College. This system is a controversial subject in American politics. Primary sources and informative sidebars lend historical context to help young readers understand this essential aspect of U.S. presidential elections.