Question about the United States in WW2?

Hi there. I was recently reading a book on WW2 and I came across something rather odd to me. It was saying how in the United States, in comparison with other countries, fear was somewhat nonexistent. And how during the war, Europe, Africa, the Middle East, and Asia held no elections. In the United States however, Americans experienced 2 presidential elections, 3 congressional, and hundreds of state elections. Why weren't Americans "afraid" during WW2?