2016 Presidential Primaries, Caucuses, and Conventions

Democratic Delegate Allocation Math


The Democrats use a single formula for proportional allocation. That is, it is used for the allocation of the the District, PLEO, and At-Large delegates in every jurisdiction.

 

The number of delegate positions allocated to each presidential candidate (including uncommitted) is determined as follows:

Step 1: Tabulate the percentage of the vote that each preference receives.

Example
CandidateVotePercentage
Alex57,53276.092%
Bonnie15,63020.672%
Colin1,6002.116%
Danielle8461.119%
Total75,608100.000%

Step 2: Re-tabulate the percentage of the vote, to three decimals, received by each presidential preference excluding the votes of presidential preferences whose percentages in step 1 fall below 15%. Fine point: If no Presidential preference reaches a 15% threshold, the threshold is the percentage of the vote received by the front-runner, minus 10%. The total vote is called the qualified vote.

CandidateVotePercentage
Alex57,53278.636%
Bonnie15,63021.364%
Total "Qual Vote"73,162100.000%

Step 3: Multiply the number of delegates to be allocated by the percentage received by each presidential preference in step 2. In this example there are 5 delegates.

Alex78.636% × 5 delegates = 3.932
Bonnie21.364% × 5 delegates = 1.068

Step 4: Delegates are allocated to each presidential preference based on the whole numbers that result from the multiplication in Step 3.

Candidate Delegates
Alex3.9323
Bonnie1.0681

Step 5: The remaining delegates, if any, are awarded in order of the highest fractional remainders in Step 3.

CandidateRemainderAdditional Delegates
Alex.932+1
Bonnie.068 

Final tally:

CandidateDelegates
Alex4
Bonnie1

This is represented as:

Contest Alex Bonnie Colin Danielle
 Pop
Vote
Qual
Vote
DelPop
Vote
AllocDelPop
Vote
AllocDelPop
Vote
AllocDelPop
Vote
AllocDel
CD175,60873,162557,5323.932415,6301.06811,600  846  

Fine point: If a Presidential candidate is no longer a candidate at the time of selection of the PLEO and At-Large delegates, then those at-large slots that would have been allocated to the candidate will be proportionally divided among the remaining preferences entitled to an allocation.


 


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