Tuesday 5 March 2024: Massachusetts Primary. Hours 7:00a-8:00p EST (1200-0100 UTC). Some municipalities may open their polls as early as 5:45a EST. Delegate Selection: Winner-Take-Most Primary. Voter Eligibility: Modified Primary.

Primary
Included in Nationwide vote.
Estimate updated 8 March 2024 11:00a EST.

All 40 of Massachusetts' delegates to the Republican National Convention are allocated to presidential contenders based on the statewide results of today's Presidential Primary.

• If a presidential candidate receives a majority (50% or more) of the statewide vote, that candidate receives all 40 delegates.
• Otherwise, apportion the 40 delegates to those candidates receiving more than 10% of the statewide vote: Each candidates receives (votes for the candidate) ÷ (total votes for candidates receiving more than 10% of the vote). Rounding: Beginning with the candidate receiving the most votes, round up any fractional delegates to the next whole number and proceed on to the next highest vote getter. Continue this until all delegates have been allocated. [Section 2.1(b)(c)] This may not be correct.

In addition, 3 party leaders, the National Committeeman, the National Committeewoman, and the chairman of the Massachusetts's Republican Party, will attend the convention as pledged delegates by virtue of their position.

Primary
Estimate updated 8 March 2024 11:00a EST.

Winner-take-all for Trump.

On 1 April, the delegates are selected by the State Chair, State Committee, and Presidential campaign committee(s) according to the results of the primary. [Section 3.3(a)(b)(c)]

If a Presidential candidate who was entitled to delegates dies, withdraws, or changes party registration, delegates bound to that candidate will go to the National Convention unbound. [Section 2.3(b)]

Delegates are bound for the 1st roll call vote. [Section 2.3(a)]

Thursday 18 April 2024: Massachusetts State Committee Meeting.

Statewide delegates are appointed, according to the results of the primary, by the State Committee in consultation with the Presidential campaigns who provide their respective list of delegates no later than 1 April 2024.