An answer resolves YES if that person wins the most delegates in at least one state during the 2028 Republican Party presidential primaries. Otherwise the answer will resolve NO once all contests are over.

The source of the official delegate count will be the Republican National Committee (RNC), and any disputes about the delegate count will be resolved based on the RNC's official statements.

Nominating contests in places which are not states will not count for the purposes of this market (e.g. Washington D.C., American Samoa, etc.).

If there is a caucus in a state instead of a primary, or if there is more than one nominating contest (e.g. if there is a primary and a caucus) then nothing changes - the important factor is who wins the most delegates in that state.