Primary Calendars

Establishing the date and type of presidential primary varies from state to state due to differences in state statutes, party constitutions, party rules and regulations, party by-laws and delegate selection plans. In some states, a caucus and/or convention may be held instead of a presidential primary election. Other states may use a combination of both caucuses and primaries for delegate selection. For primary dates and more information, visit:

• Time
  Results from the primaries, as they happen.
  
  
• FEC: 2008 Presidential and Congressional Primary Dates
  View presidential and congressional primary and caucus dates by state or in chronological order.
  
  
• Washington Post OnPolitics
  Scroll down to see results of each state's 2008 presidential primaries.