What determines the method a state uses to select delegates?

The method a state uses to select delegates is determined by state law. Each state has the authority to establish its own procedures for selecting delegates to national political conventions, and these procedures can vary widely between states. State laws can dictate whether delegates are chosen through primaries, caucuses, or other means, and they can define the specific processes and rules that govern these selection methods.

Federal guidelines and national party rules may provide some overarching frameworks, but the actual implementation and specifics are determined at the state level. This allows states to tailor their delegate selection processes to fit their political culture and preferences, thereby giving them the flexibility to adapt to the needs of their party constituents. Popular vote can play a role in the selection process, particularly in primary elections, but it is the state law that ultimately outlines how that vote translates into delegate selection.