What is Super Tuesday? Since our last feature on the Iowa Caucuses, four states, Iowa, New Hampshire, South Carolina, and Nevada have all cast their votes for both the Republican and Democratic Presidential nominees, respectively. With two caucuses and two primaries, these early voting states represent each region of the United States: the Midwest, the Northeast, the South, and the Far West. Both the RNC and the DNC set rules for when states can hold their primary elections,