2020 Presidential Primaries,
Caucuses, and Conventions
Major Events

These pages contain a combination of official, unofficial, and estimated data. The information posted here is subject to change.

The delegate selection processes herein, along with any and all dates and delegate counts associated therewith, are unofficial and based on either (1) information obtained from either Major Party, (2) Presidential Primary dates established by currently-effective State statute, or- where the foregoing information could not be obtained- (3) the state's 2016 delegate selection process and associated dates adjusted to the corresponding dates in 2020.


  • Republican delegate counts are based on the number of Republicans elected to the State Legislatures, Governors chairs, U.S. House seats, and U.S. Senators seats through 31 December 2019. Republican unpledged delegate counts are determined by state (or equivalent) party rules. We have assumed that the policies of 2016 will apply in 2020.
  • The Republican district delegate count is based on the number of U.S. House members each state will elect in 2020.
  • Republican penalties for violating the timing window are not included in these delegate tallies.

Donkey and Elephant Democratic

*Monday 13 July - Thursday 16 July 2020: 48th Democratic National Convention

*Monday 24 August - Thursday 27 August 2020: 42nd Republican National Convention
Wednesday 11 December 2019 *Hawaii Party announcement
Friday 31 January - Saturday 1 February 2020 *Kansas State Convention
Monday 3 February 2020*Iowa Precinct Caucuses1*Iowa Precinct Caucuses
Tuesday 11 February 2020*New Hampshire Primary1*New Hampshire Primary
Friday 21 February - Sunday 23 February 2020 *Nevada Alternative Presidential Preference Poll
Saturday 22 February 2020*Nevada Precinct Viability Caucuses1 
Saturday 29 February 2020*South Carolina Primary1 
March 2020 *Wyoming County Conventions (presumably)
Tuesday 3 March 2020*Alabama Primary1
*Arkansas Primary1
*American Samoa Territorial Caucus1
*California Primary1
*Colorado Primary1
*Massachusetts Primary1
*Maine Primary1
*Minnesota Primary1
*North Carolina Primary1
*Oklahoma Primary1
*Tennessee Primary1
*Texas Primary1
*Utah Primary1
*Virginia Primary1
*Vermont Primary1
*Alabama Primary
*Arkansas Primary
*California Primary
*Colorado Primary
*Massachusetts Primary
*Maine Primary
*Minnesota Primary
*North Carolina Primary
*Oklahoma Primary
*Tennessee Primary
*Utah Primary
*Vermont Primary
*Texas Primary (presumably)
Tuesday 3 March - Tuesday 10 March 2020*Democrats Abroad Global Party Run Primary1 
Tuesday 10 March 2020*Idaho Primary1
*Michigan Primary1
*Missouri Primary1
*Mississippi Primary1
*North Dakota Firehouse Caucuses (party run primary)1
*Washington Primary1
*Idaho Primary
*Michigan Primary
*Missouri Primary
*Mississippi Primary
*Washington Primary
Thursday 12 March 2020 *Virgin Islands Territorial Caucus (presumably)
Saturday 14 March 2020*Northern Marianas Convention1*Guam Territorial Caucus (presumably)
Tuesday 17 March 2020*Arizona Primary1
*Florida Primary1
*Illinois Primary1
*Ohio Primary1
*Florida Primary
*Illinois Primary
*Ohio Primary
*Northern Marianas Commonwealth Convention (presumably)
Tuesday 24 March 2020*Georgia Primary1*Georgia Primary
*American Samoa Territorial Caucus (presumably)
Friday 27 March - Sunday 29 March 2020 *North Dakota State Convention
Sunday 29 March 2020*Puerto Rico Primary1 
Thursday 2 April - Saturday 4 April 2020 *Alaska State Convention
Saturday 4 April 2020*Alaska Party-Run Primary1
*Hawaii Party-run Presidential Preference Poll (firehouse primary)1
*Louisiana Primary1
*Wyoming County Caucuses/Conventions1
*Louisiana Primary
Tuesday 7 April 2020*Wisconsin Primary1*Wisconsin Primary
Tuesday 28 April 2020*Connecticut Primary1
*Delaware Primary1
*Maryland Primary1
*New York Primary1
*Pennsylvania Primary1
*Rhode Island Primary1
*Connecticut Primary
*Delaware Primary
*Maryland Primary
*New York Primary
*Pennsylvania Primary
*Rhode Island Primary
Friday 1 May - Saturday 2 May 2020 *Virginia State Convention
Saturday 2 May 2020*Guam Caucus1
*Kansas Party-Run Primary1
*South Carolina State Convention
Tuesday 5 May 2020*Indiana Primary1*Indiana Primary (presumably)
Thursday 7 May - Saturday 9 May 2020 *Wyoming State Convention
Saturday 9 May 2020 *Arizona State Convention and Congressional District Caucus
Tuesday 12 May 2020*Nebraska Primary1
*West Virginia Primary1
*Nebraska Presidential Primary
*West Virginia Primary
Saturday 16 May 2020*Alaska State Party Convention 
Tuesday 19 May 2020*Kentucky Primary1
*Oregon Primary1
*Kentucky Primary
*Oregon Primary
Tuesday 2 June 2020*District of Columbia Primary1
*Montana Primary1
*New Jersey Primary1
*New Mexico Primary1
*South Dakota Primary1
*District of Columbia Primary
*Montana Primary
*New Jersey Primary
*New Mexico Primary
*South Dakota Primary (presumably)
Saturday 6 June 2020*Virgin Islands District Caucuses1 
Sunday 7 June 2020 *Puerto Rico Primary (presumably)
Thursday 11 June - Saturday 13 June 2020 *Illinois Convention

* Major event or National Convention delegates allocated.
1 Democratic Party's "First Determining Step" of the delegate selection process.


  Election 2020 - Presidential Primary, Caucus, and Convention Home  
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  Poll Closing Times Chronologically   --   Poll Closing Times Alphabetically  
  Democratic "First Determining Step" Chronologically  
  Chronological Cumulative Allocation of Delegates  
  Weekly Delegate Distribution and Availability  
Delegate Counts
  Democratic Hard and Soft Summary   --   Republican Hard and Soft Summary  
Delegate Allocation
  Democratic Quick Reference   --   Republican Quick Reference  
  The Math Behind the Democratic Delegate Allocation   --   The Math Behind the Republican Delegate Allocation  
  Democratic Timing Penalties and Bonuses  
  Democratic Delegate Pledging and Voter Eligibility   --   Republican Delegate Binding and Voter Eligibility  
  Primaries at a Glance  
  Results Status and Date Retreived  
  Historical Analysis of the Presidential Nominating Process  
  Historical Analysis of the apportionment of delegate votes at the National Conventions of the two major parties  
  Primary/Caucus/Convention Glossary  
  Statutory Election Information of the Several states / Presidential Primary  
  Dates of PRESIDENTIAL PRIMARIES re: selection and/or allocation/distribution of Delegates to Major Party National Conventions  
  Major Third Party Presidential Nomination Process  
  Straw Polls