Tuesday 28 February 2012 (cancelled): Arizona Democratic non-binding Primary. The Democratic Party did not request a primary so none was held.

Participation in Arizona's delegate selection process is open to all voters who wish to participate as Democrats. Only registered Democrats are allowed to participate in the state-run caucuses.

President Barack Obama, the only candidate who filed the appropriate paperwork for the office of President of the United States in the 2012 Arizona Presidential Preference Caucus, will receive all 70 pledged delegates.

Saturday 31 March 2012: 70 of 80 delegates to the Democratic National Convention are pledged to presidential contenders based on the results of the voting in today's Arizona Presidential Caucuses. A mandatory 15 percent threshold is required in order for a presidential contender to be allocated National Convention delegates at either the congressional district or statewide level.

• 46 district delegates are to be pledged proportionally to presidential contenders based on the caucus results in each of Arizona's 8 Congressional Districts. Districts are based on the 2000 census redistricting as in effect in 2010. (as of 16 March 2011)
• CD 1: 6
• CD 2: 7
• CD 3: 5
• CD 4: 4
• CD 5: 6
• CD 6: 6
• CD 7: 6
• CD 8: 6
• In addition, 24 delegates are to be allocated to presidential contenders based on the caucuses vote statewide.
  • 15 at-large National Convention delegates
  • 9 Pledged PLEOs

Saturday 31 March 2012 Congressional District Caucuses meet to elect National Convention district level delegates according to the results of the caucuses.

Saturday 21 April 2012: State Convention and State Committee Meeting

National Convention Pledged PLEO and At-Large delegates are elected according to the results of the primary.

The remaining 10 National Convention delegates consist of

• 10 Unpledged PLEO delegates:
• 7 Democratic National Committee members.
• 3 Members of Congress (0 Senators and 3 Representatives).
• 0 Governors.
• 0 Distinguished Party Leaders.

These 10 delegates and will go to the Democratic National Convention officially "Unpledged".

Notes:

21 July 2011: from Capitol Media Services - Brewer eyes moving Arizona's presidential primary to [the last Tuesday in] January.

2 September 2011 from Fox News - Arizona Governor Will Not Move State's Presidential Primary to Jan. 31.

2 September 2011: Statement by Governor Jan Brewer - Arizona Presidential Debate - "Just as important as what I'm announcing today is what I'm not announcing: a formal date for Arizona’s Presidential Preference Election. I will for the time being keep my options open."

12 September 2011: Statement from Governor Jan Brewer Establishing Arizona’s 2012 Presidential Primary on February 28, 2012-- "Today I signed a proclamation establishing February 28 as the date of Arizona’s 2012 Presidential Preference Election. It has always been a priority of mine to ensure that Arizona and its voters play an influential role in the nomination process ..."

The 28 February 2012 start date is before the 6 March 2012 window and could expose the state to Rule 20.C.1. Sanctions. The Arizona legislature adjourned Sine Die on 20 April 2011. No bills were consider to change the date of the primary.

On 10 September 2011, Frank Leone (DNC Virginia) re: DNC Rules and Bylaws Committee Meeting Report wrote that Arizona, Florida, and Georgia Democratic Parties will begin their delegate selection process using a caucus should their states decide to hold a pre-window primary.