By the time the U.S. presidential election rolls around every four years, everyone knows who's in the running for office. But how are presidential candidates in the United States chosen? How do candidates get nominated, and what does a nomination mean? Can you become president without a nomination, and why or why not? Readers will learn about political parties, national conventions, special circumstances during nominations, and the history of presidential nominations. Primary sources and fact boxes add further historical and fascinating content.