The 2016 Presidential Primary Calendar

Latest update: 1/31/16 (Calendar finalized)

Download FHQ's calendar for iCal or Outlook or see it on Google Calendar.

Reading the Map:

As was the case with the maps from past cycles, the earlier a contest is scheduled in 2016, the darker the color in which the state is shaded. Texas, for instance, is a deeper shade of blue in March than California is in June. States that are bisected vertically are states where the state parties have different dates for their caucuses and/or primaries. The left section is shaded to reflect the state Democratic Party's scheduling while the right is for the state Republican Party's decision on the timing of its delegate selection event (see Nebraska). This holds true for states -- typically caucus states -- with a history of different dates across parties.

2016 Presidential Primary Calendar

February

Monday, February 1:

Iowa caucuses (both parties)

Tuesday, February 9: 

New Hampshire

Saturday, February 20: 
Nevada Democratic caucuses
South Carolina Republican primary

Tuesday, February 23:
Nevada Republican caucuses

Saturday, February 27:
South Carolina Democratic primary

March

Tuesday, March 1:
Alabama
Alaska Republican caucuses
American Samoa Democratic caucuses
Arkansas

Colorado caucuses (both parties, no preference vote for Republicans)

Democrats Abroad party-run primary
Georgia
Massachusetts
Minnesota caucuses (both parties)

North Dakota Republican caucuses (completed by March 1)
Oklahoma

Tennessee

Texas

Vermont

Virginia
Wyoming Republican caucuses

Saturday, March 5:
Kansas caucuses (both parties)
Kentucky Republican caucuses
Louisiana
Maine Republican caucuses
Nebraska Democratic caucuses

Sunday, March 6:
Maine Democratic caucuses
Puerto Rico (Republicans only)

Tuesday, March 8:

Hawaii Republican caucuses

Idaho (Republicans only)
Michigan

Mississippi

Thursday, March 10: 
Virgin Islands Republican caucuses

Saturday, March 12:
Guam Republican convention 
Northern Mariana Islands Democratic caucuses
Washington, DC Republican convention

Tuesday, March 15:
Florida

Illinois

Missouri

North Carolina 

Northern Mariana Islands Republican caucuses

Ohio


Tuesday, March 22:
American Samoa Republican convention
Arizona
Idaho Democratic caucuses
Utah caucuses (both parties)


Saturday, March 26:
Alaska Democratic caucuses
Hawaii Democratic caucuses
Washington Democratic caucuses

April

Friday-Sunday, April 1-3:
North Dakota Republican state convention

Tuesday, April 5:

Wisconsin

Saturday, April 9:
Colorado Republican state convention
Wyoming Democratic caucuses

Tuesday, April 19:

New York

Tuesday, April 26:

Connecticut

Delaware
Maryland

Pennsylvania

Rhode Island
  

May

Tuesday, May 3:

Indiana

Saturday, May 7:
Guam Democratic caucuses/convention

Tuesday, May 10:

Nebraska (Republicans only)

West Virginia

Tuesday, May 17:

Kentucky (Democrats only)

Oregon

Tuesday, May 24:

Washington (Republicans only, Democratic beauty contest)
  

June

Saturday, June 4:
Virgin Islands Democratic caucuses

Sunday, June 5:
Puerto Rico Democratic caucuses

Tuesday, June 7:

California

Montana 

New Jersey

New Mexico
North Dakota Democratic caucuses

South Dakota

Tuesday, June 14:
Washington, DC (Democrats only)
   

--

Marked up version of the calendar

(Accounts for changes made to the calendar 2012-2015)

Reading the calendar:

1. Links to discussions of 2013, 2014 or 2015 state-level legislation addressing the dates of future presidential primaries have also been added (see 2013, 2014 or 2015 Legislation in the calendar).
2. Markers have also been added indicating whether legislation has become law or has died at some point in the legislative process. 
3. The bracketed numbers [+x or -y] refer the number of days the primary or caucuses have moved relative to where the previous statute scheduled the contest or, where noted, how far a state contest has moved relative to its position on the calendar in 2012.

2016 Presidential Primary Calendar

February

Monday, February 1:

Iowa caucuses

Tuesday, February 9: 

New Hampshire

Saturday, February 20: 
Nevada Democratic caucuses

South Carolina Republican primary
    (2012 Legislation: codify first in the South status -- Died in Committee)
    (2014 Legislation: Primary funding -- Signed into Law -- signed 6/6/14)

Washington Republican caucuses
    (Date set on September 12, 2015 at state central committee meeting. The caucuses will begin the
    delegate selection process, but have no bearing on delegate allocation/binding.)

Tuesday, February 23:
Nevada Republican caucuses 
    (Date set by Nevada Republican Party State Central Committee on August 29, 2015.)

Saturday, February 27:
South Carolina Democratic primary
    (2012 Legislation: codify first in the South status -- Died in Committee)
    (2014 Legislation: Primary funding -- Signed into Law -- signed 6/6/14)

March

Tuesday, March 1:
Alabama
    (2015 Legislation: March 1 primary -- Became Law -- became law 5/28/15 without
      gubernatorial signature)
    [+7]
Alaska Republican caucuses
Arkansas
    (2015 Legislation: separate March presidential primary; consolidated March primary -- both
      Died at end of session)
    (2015 Special Session Legislation: earlier May primary -- Died in Committee; March 1 primary:
      House -- House version Died in Senate Committee]/Senate -- [Senate version Signed into Law
      -- signed 5/29/15])
    [+84]

Colorado Democratic caucuses¹

    (2015 Legislation: March primary -- Died in Committee)
    (tentatively set on May 4, 2015 based on draft delegate selection plan)
Colorado Republican caucuses¹
    (2015 Legislation: March primary -- Died in Committee)
    (date set on September 26, 2015 after State Central Committee vote)
Georgia
    (Presidential primary date set by Secretary of State Kemp on September 3, 2015.)
Massachusetts 
    (2013 Legislation: consolidated June primary -- Died at end of session)
    (2015 Legislation: consolidated June primary)
Minnesota caucuses
    (Caucuses date set on 2/14/15)
    (2015 Legislation: last Tuesday in March primary: House/Senate)
    [-28]²

North Dakota Republican caucuses
Oklahoma
    (2015 Legislation: move primary to fourth Tuesday in March)

Tennessee

Texas
    (2013 Legislation: Saturday primary, February primary -- all Died in Committee)
    (2015 Legislation: January primary -- Died in Committee)

Vermont
    (2015 Legislation: Primary same date as New Hampshire primary: Senate/House -- Dead for 2015 
      but carries over to 2016 session)

Virginia
Wyoming Republican caucuses
    (Date set at Wyoming Republican Party State Central Committee meeting on July 25, 2015.)

Saturday, March 5:
Kansas Democratic caucuses
    (tentatively set on May 2, 2015 based on draft delegate selection plan)
Kansas Republican caucuses
    (tentatively set on January 31, 2015 at state convention)
Kentucky Republican caucuses
    (2015 action: date set on August 22, 2015 following central committee vote)
    [+73]
Louisiana
    (2014 legislation: earlier March primary -- Signed into Law -- signed 6/19/14)
    [+14]
Maine Republican caucuses
    (Date set at Maine Republican Party State Central Committee meeting on September 19, 2015.)
Nebraska Democratic caucuses
    (tentatively set on March 31, 2015 based on draft delegate selection plan)

Sunday, March 6:
Maine Democratic caucuses
    (tentatively set on March 31, 2015 based on draft delegate selection plan)
Puerto Rico (Republicans)

Tuesday, March 8:

Hawaii Republican caucuses

Idaho (Republicans only)
    (2015 Legislation: second Tuesday in March primary (I) -- Died at end of session, second 
      Tuesday in March primary (II) -- Signed into Law -- signed 4/9/15, 2016 presidential 
      primary funding -- Signed into Law -- signed 4/10/15)
    [-7]
Michigan

    (2014 Legislation: March primary -- Died at end of session)
    (2015 Legislation: March primary -- Signed into Law -- signed 2/20/15)
    [-14]

Mississippi
    (2015 Legislation: March 1 primary: House/Senate -- Senate bill died in Conference)

Saturday, March 12:
Guam Republican convention 
Washington, DC Republican convention

Tuesday, March 15:
Florida
    (2013 Legislation: March primary -- Died in Committee; Primary on first unpenalized date --
      Signed into Law -- 5/21/13)
    (2015 Legislation: March 15 primary -- House/Senate -- House version signed into Law -- signed  
      3/19/15)
    [-49]³

Illinois
    (2013 Legislation: June primary -- Died in Committee)
    (2015 Legislation: June primary, July primary)

Missouri 
    (2013 Legislation: March primary: House/Senate, April primary -- all Died in Committee)
    (2014 Legislation: March primary: House/Senate -- Senate committee substitute Signed into  
      Law -- signed 6/4/14)
    [-42]

North Carolina 

    (2013 Legislation: Move primary to Tuesday after South Carolina primary if South Carolina  
      is before March 15 -- Signed into Law -- signed 8/12/13) 
    (2015 Legislation: March 8 primary; March 15 primary -- Signed into Law -- signed 9/30/15)
    [+70, then -21; +49 overall]
Northern Mariana Islands Republican caucuses

    [caucuses set September 30, 2015 by the Republican Party of the Commonwealth of the Northern
    Mariana Islands]
Ohio
    (2015 Legislation: March 15 primary -- Signed into Law -- signed 6/10/15)
    [-7]


Saturday, March 19:
Virgin Islands Republican convention


Tuesday, March 22:
American Samoa convention
Arizona
    (2013 Legislation: Fix primary date to date of Iowa caucuses -- Died at end of session)
    (2014 Legislation: move the primary to the Tuesday after March 15 -- Signed into Law --
      signed 4/16/14)
    (2015 Legislation: Fix primary date to date of Iowa caucuses -- Died at end of session)
    [-28]
Idaho Democratic caucuses
    (tentatively set on March 30, 2015 based on draft delegate selection plan)
Utah Democratic caucuses
    (tentatively set on April 30, 2015 based on draft delegate selection plan)
Utah Republican caucuses (online voting begins March 15)
    (set at State Central Committee meeting -- 5/30/15)
    (2015 Changes: Utah Republican Party votes to switch to caucuses. -- 3/7/15)

Saturday, March 26:
Alaska Democratic caucuses
    (tentatively set on March 17, 2015 based on draft delegate selection plan)
Hawaii Democratic caucuses
    (tentatively set on April 3, 2015 based on draft delegate selection plan)
Washington Democratic caucuses
    (tentatively set on March 16, 2015 based on draft delegate selection plan)

April

Tuesday, April 5:

Wisconsin⁴

    (2015 Legislation: February primary)

Saturday, April 9:
Colorado Republican convention
Wyoming Democratic caucuses
    (tentatively set on March 23, 2015 based on draft delegate selection plan)

Tuesday, April 19:

New York

    (2015 Legislation: April 19 primary, April 26 primary -- April 19 bill signed into Law -- signed  
      7/23/15)

    [-77]

Tuesday, April 26:

Connecticut
    (2015 Legislation: Thursday Republican primary, March primary -- both Died at end of 
      session)

Delaware
Maryland
    (2015 Legislation: later April primary -- Senate version signed into Law -- signed  
      5/12/15)
    [-21]

Pennsylvania
    (2015 Legislation: third Tuesday in March primary)

Rhode Island
    (2015 Legislation: fourth Tuesday in March primary -- Died in committee at end of 
      session)

May

Tuesday, May 3:

Indiana

Tuesday, May 10:

Nebraska (Republicans only)
    (Nebraska Republican Party opted into state primary with binding rules change on June 6, 2015.)

West Virginia

Tuesday, May 17:

Kentucky (Democrats only)

Oregon

    (2015 Legislation: separate presidential, other primaries)

Tuesday, May 24:

Washington (Republicans only, Democratic beauty contest)
    (2015 Legislation: March primary: House/Senate; cancel 2016 primary -- all Died at end of 
      session); primary funding bill: signed into Law -- signed June 30, 2015)

June

Tuesday, June 7:

California

Montana 
    (2013 Legislation: May primary -- Died in Committee)
    (2015 Legislation: August primary -- appears Dead in Committee)

New Jersey

New Mexico
    (2015 Legislation: March primary -- Died in Committee)
North Dakota Democratic caucuses
    (tentatively set on March 27, 2015 based on draft delegate selection plan)

South Dakota

Tuesday, June 14:
Washington, DC (Democrats only)
    (2013 Legislation: June primary) -- Signed into Law -- cleared congressional review 5/2/15)
    [-70]

Tuesday, June 28:
Utah
    (2013 Legislation: Primary funding -- Signed into Law)
    (2014 Legislation: Primary before Iowa/New Hampshire -- Died in state Senate)
    (2015 Legislation: March primary -- Died at end of session)

--

Primary states with no specified date:

Kansas

    (2015 Legislation: cancel 2016 presidential primary: House/Senate, omnibus elections package --
      Signed into Law -- signed 6/8/15)
    [Primary cancelled]
Maine
    (2013 Legislation: establish primary -- Died in Committee)
Nevada
    (2013 Legislation: January primary -- Died in Committee)
    (2015 Legislation: January February primary: Assembly/Senate -- both
      Died at end of session)

--
Caucuses states with no specified date (NOTE: Dates may be different across parties within one state):
All states now have dates

--
¹ The state parties in Colorado have the option of choosing either the first Tuesday in March date called for in the statute or moving up to the first Tuesday in February.

² The Minnesota state parties must agree on a date on which to hold caucuses by March 1 in the year prior to a presidential election. If no agreement is reached, the caucuses are set for the first Tuesday in February. So, while Minnesota technically had no date until February 14, 2015, and thus no real movement on the calendar, FHQ will include the fact that the Minnesota caucuses date moved back 28 days relative to their position in 2012. 

³ The 2011 law granted the primary date setting authority in Florida to a committee for the 2012 cycle. That basically allowed Florida to reset to no date after the presidential primary until the Presidential Preference Primary Date Selection Committee met to set the date for the next subsequent cycle. That law was amended in 2013, eliminating the PPPDSC and setting the date of the Florida presidential primary for the earliest date not penalized by the delegate selection rules of the national parties. That law, too, kept the date of the 2016 primary in doubt. The Republican National Committee has rules penalizing both the timing of a primary and the delegate allocation based on the results of said primary. That, in turn, essentially ceded the decision on the date of the presidential primary to the Republican Party of Florida. If the state party opted for a winner-take-all delegate allocation, then the primary would be on March 15. However, opting into a proportional allocation plan would place the primary on March 1. The Republican Party of Florida had signaled, but not officially set/changed the allocation rules for 2016. As such (because of the PPPDSC reset and the 2013 law not being fully realized before it too was changed), Florida did not technically move any on the calendar (see Minnesota situation above). Yet, based on Florida's position on the last Tuesday in January in 2012, the 2016 primary will be seven weeks later.

⁴ See definition of "Spring election" for clause dealing with the timing of the presidential primary.


--
Update Chronology:
1/31/16 (Calendar finalized -- both parties)
12/17/15 (Bill Gardner sets New Hampshire primary date)
10/2/15 (Calendar finalized by RNC)
9/30/15 (The North Carolina presidential primary was moved to March 15 on the calendar after Governor McCrory signed HB 373 into law on September 30, 2015.)
9/26/15 (The Colorado Republican caucuses were added to the calendar following the vote by the State Central Committee against February caucuses.)
9/22/15 (Maine Republican caucuses were added to the calendar following State Central Committee vote in mid-September 2015.)
9/14/15 (Washington Republican caucuses added to the calendar after State Central Committee vote, but with the caveat that they will only play a role in the delegate selection process, not the delegate allocation process.)
9/7/15 (Wyoming Republican caucuses were added to the calendar after the state party's Central Committee set the date at its July 25 meeting.)
9/3/15 (Georgia presidential primary added to the calendar after March 1 was set as the date by Secretary of State Kemp.)
8/29/15 (Nevada Republican caucuses were added to the calendar after state central committee set the date.)
8/27/15 (The planned but not scheduled latter half of March Washington, DC Republican convention was added to the calendar.)
8/22/15 (Kentucky Republican caucuses added to the calendar following state central committee vote in favor of March 5 caucuses on Saturday, August 22, 2015.)
8/14/15 (Notes added for clarification of current carve-out state positioning on the calendar)
7/23/15 (New York presidential primary bill signed into law. Primary date moved from February 2 to April 19 on the calendar.)
7/20/15 (North Carolina March 15 primary bill added to the calendar.)
6/30/15 (Washington state primary locked in with funding included in 2015-17 budget. Other bills to reschedule or cancel the primary died at the conclusion of the third special session.)
6/29/15 (Rhode Island reshaded on the map after March primary bill died with the legislature's adjournment.)
6/24/15 (Kansas Republican caucus date added to the calendar and reshaded on the map. The date decision was made at the 2015 state convention on January 31.)
6/16/15 (New York presidential primary bill setting election for April 26 added to the calendar. New York is also reshaded on the map.)
6/10/15 (Pennsylvania bill to move presidential primary from April to the third Tuesday in March added to the calendar and reshaded on the map.)
6/10/15 (Ohio presidential primary moved to March 15 on the calendar after Governor Kasich signed HB 153.)
6/10/15 (Colorado Democratic caucuses added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
6/9/15 (Alabama SEC primary bill becomes law without gubernatorial signature, changing Alabama's position on the calendar.)
6/8/15 (Kansas bill canceling presidential primary signed into law changing Kansas on the calendar.)
6/4/15 (Both Connecticut presidential primary bills died at the close of 2015 legislative session. Connecticut is changed on the calendar and reshaded on map.)
6/3/15 (Utah Republican caucuses set after the Utah Republican Party State Central Committee meeting on May 30, 2015. Added to the calendar and reshaded on map.)
6/2/15 (Nevada and Texas primary bills died at conclusion of legislative sessions. Both were reshaded on map.)
5/29/15 (Arkansas primary date changed to March 1 (SEC primary date) on the calendar and reshaded on the map after Governor Hutchinson signed primary bill into law.)
5/26/15 (Arkansas special session presidential primary bills added to the calendar and reshaded on the map. One House bill would shift the consolidated primary up to the first Tuesday in May and create a study committee to examine the benefits of calendar positioning. Identical House and Senate versions of a consolidated primary scheduled for March 1 (SEC primary date) were also introduced.)
5/13/15 (Omnibus elections bill to cancel Kansas presidential primary added to the calendar.)
5/12/15 (Maryland presidential primary moved back on the calendar after Senate bill signed by Governor Hogan.)
5/8/15 (Kansas Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
5/6/15 (Utah Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
5/5/15 (The Colorado presidential primary bill died in committee. That change is reflected on the calendar the state was reshaded on map.)
5/4/15 (Washington, DC presidential primary moved on the calendar from the first Tuesday in April to the second Tuesday in June and reshaded on map.)
4/30/15 (Colorado presidential primary bill to reestablish a primary during the first half of March is added to the calendar and reshaded on map.)
4/29/15 (Puerto Rico presidential primary added to the calendar and reshaded on map.)
4/22/15 (Arkansas presidential primary legislation died in committee at the end of the 2015 regular session and reshaded on map.)
4/13/15 (Ohio legislation to move presidential primary back a week to March 15 added to the calendar.)
4/13/15 (Rhode Island bill to move the primary from the fourth Tuesday in April to the fourth Tuesday in March added to the calendar and reshaded on the map.)
4/13/15 (Nevada reshaded on the map to reflect amended legislation calling for various February presidential primary option.)
4/11/15 (Idaho March 8 primary date added to the calendar and reshaded on the map after the primary bill was signed into law.)
4/8/15 (Maine Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/7/15 (Idaho Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/7/15 (Alaska Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/6/15 (Hawaii Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/6/15 (Washington Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/5/15 (North Dakota Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/5/15 (Nebraska Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/4/15 (Arizona first in the nation presidential primary bill dies at the end of the 2015 state legislative session and is reshaded on the map.)
4/3/15 (Wyoming Democratic caucuses tentatively added to the calendar and reshaded on the map based on the release of the state party's draft 2016 delegate selection plan.)
4/1/15 (North Carolina March presidential primary bill added to the calendar and reshaded on the map)
3/30/15 (Mississippi SEC presidential primary bill died in conference, locking the state into a March 8 primary date.)
3/29/15 (Nevada state Senate bill to create a presidential primary added to the calendar.)
3/19/15 (Florida presidential primary is date set on the calendar.)
3/18/15 (Alabama SEC primary bill -- to move the primary to March 1 -- added to calendar)
3/14/15 (Nevada primary bill to create a presidential primary and consolidate it with other primaries on the Tuesday before the last Tuesday of January added to calendar and reshaded on the map.)
3/13/15 (Utah primary bill dies at end of the 2015 legislative session, eliminating February primary option for 2016. Both parties will hold caucuses because the June primary option is too late to comply with national party delegate selection rules.)
3/11/15 (Massachusetts bill to consolidate primaries in June added to the calendar and reshaded on the map. Minnesota House bill to establish a presidential primary added to the calendar.)
3/10/15 (Arkansas bill to move consolidated primary from May to March added to the calendar.)
3/9/15 (Wisconsin bill moving the primary to February added to the calendar and reshaded on map. Kansas House bill to cancel 2016 presidential primary added to the calendar.)
3/8/15 (New Mexico March primary bill died in committee and reshaded on map. Utah Republican caucuses added to Caucuses States with no specified date list and reshaded on the map.)
3/4/15 (Washington bill to cancel the 2016 presidential primary added to the calendar.)
3/3/15 (Illinois legislation to move primary to July added to the calendar.)
3/2/15 (Florida House legislation to more officially schedule the presidential primary for the third Tuesday in March added to the calendar.)
2/27/15 (Minnesota legislation creating a last Tuesday in March primary added to the calendar.)
2/27/15 (Florida legislation to more officially schedule the presidential primary for March 15 added to the calendar. Given the Republican Party of Florida signal that it intends to keep a winner-take-all allocation and how the current law is worded, FHQ has made the decision to shift Florida to March 15 on the calendar (even with out passage of this legislation).)
2/24/15 (Vermont legislation to move presidential primary to same date as New Hampshire added to the calendar)
2/23/15 (Montana legislation pushing primary back to August added to the calendar.)
2/21/15 (Washington state House legislation to move the presidential primary to March 8 added to the calendar)
2/20/15 (Michigan moved to March 8 on the calendar and reshaded on the map after the primary bill was signed into law. Maryland legislation to move the primary back a week added to the calendar.)
2/18/15 (Kansas bill to cancel 2016 presidential primary added to the calendar)
2/17/15 (Arkansas bill to move primary from May to March to join the SEC primary added to the calendar, reshaded on the map)
2/16/15 (Washington state bill to move the presidential primary from May to March added to the calendar and reshaded on the map. Second Idaho March primary bill added to the calendar.)
2/15/15 (Minnesota caucuses date set and changed on the calendar. )
2/13/15 (Utah bill to move Western States Presidential Primary from the first Tuesday in February to the fourth Tuesday in March added to the calendar.)
2/11/15 (Vermont bill to move presidential primary to same date as New Hampshire added to calendar and reshaded on the map)
2/10/15 (Texas bill moving all primaries from the first Tuesday in March to the fourth Tuesday in January added to the calendar and reshaded on the map.)
2/8/15 (New Mexico bill to shift all primaries from the first Tuesday after the first Monday in June to the third Tuesday in March -- a potential Western regional primary date -- added to the calendar and reshaded on the map.)
2/6/15 (Legislation reestablishing an Idaho presidential primary and scheduling it for the second Tuesday in March added to the calendar and map.)
1/28/15 (Legislation moving the Michigan primary from February to March added to calendar and map.)
1/27/15 (Illinois bill moving the primary from the third Tuesday in March to the fourth Tuesday in June added to the calendar, reshaded on the map.)
1/23/15 (Connecticut bills for first Thursday in March Republican primary and March 1 primary added to calendar, reshaded on the map.)
1/22/15 (Mississippi legislation moving the presidential primary up one week to March added to the calendar)
1/20/15 (Arizona legislation anchoring presidential primary to Iowa added to the calendar and state reshaded on the map. Also proposed 2013 legislation from Illinois -- moving presidential primary to June -- added to calendar. Bill died in committee at the end of the 2014 state legislative session.)
1/8/15 (Changes made to the calendar and map to account for the end of 2014 legislative sessions. Michigan and Massachusetts primary bills expired at the adjournment of legislative sessions.)
12/13/14 (Legislation moving the Michigan primary from February to March added to calendar and map.)
9/12/14 (New York shifted up on the calendar to reflect sunset provision in 2011 law that expired at the end of 2012. The entire 2011 bill -- including setting the presidential primary date for April 24, 2012 -- was repealed at that time.)
8/26/14 (Arizona moved on the calendar after amended House bill was signed, shifting the primary from the fourth Tuesday in February to the Tuesday after March 15 in a presidential election year. The change officially occurred on April 16, 2014 when Governor Brewer signed the legislation into law.)
6/19/14 (Louisiana moved on the calendar after House bill moving primary from third Saturday after the first Tuesday in March to the first Saturday in March signed into law.)
6/4/14 (Missouri moved on the calendar and reshaded on the map after Senate bill signed into law. Law now calls for primary to be held on second Tuesday after the first Monday in March.)
5/31/14 (Louisiana legislation added to the calendar. Bill would move primary to first Saturday of March.)
3/28/14 (Missouri reshaded on the map to reflect both Senate and House primary bills calling for move to March)
3/14/14 (Utah reshaded on the map to reflect first in the nation presidential primary bill dying in committee)
3/9/14 (Missouri [April presidential primary bill]; Utah [first in the nation presidential primary] bills added to calendar)
8/13/13 (North Carolina presidential primary law anchoring contest to South Carolina presidential primary date added to the calendar, reshaded on the map)
6/13/13 (DC June presidential primary bill added to calendar, reshaded on the map; Missouri reshaded on the map to reflect presidential primary bills dying at the conclusion of the legislative session, Nevada reshaded on the map to reflect January primary bill dying in committee)
3/13/13 (Montana May consolidated primary bill added to the calendar, reshaded on the map)
3/5/13 (Florida March presidential primary bill added to the calendar, reshaded on the map)
3/4/13 (Nevada January presidential primary bill added, reshaded on the map)
2/28/13 (Massachusetts June presidential primary bill added, reshaded on the map)
1/6/12 (2016 presidential primary calendar first posted)