So far, 109 delegates have been chosen, including six women.
Six more delegates will be chosen at the party's state convention May 7.
They chose delegates to 99 county conventions, which meet in March.
This is also the second time where four overseas delegates were chosen.
"Not one delegate to the national convention will be chosen based on today's results."
Second, the delegates would be chosen randomly from the adult population.
In response to this act, Irwin called a special election to choose delegates.
They will also be asked to chose individual delegates.
Most states hold elections specifically for the purpose of choosing delegates.
Until this year, state Republicans used the more closed caucus system to choose presidential delegates.