From my reading of that call, you have to be a delegate from a specific county already in order to vote in the congressional district caucus tomorrow. Is that not the case? Can anyone just show up and vote?
"The District Convention shall be composed of delegates and alternate delegates of the respective units they represent. Each Unit shall have one delegate vote per 250 votes of “Republican Voting Strength” as defined in the Republican State Party Plan of Organization (“the Plan”). The delegates and alternates shall be elected in county and city mass meetings, party canvasses or conventions called for this purpose by each unit committee in conformity with the Plan."