(1) The county postprimary convention of a political party shall be held in the courthouse or other suitable place at the county seat anytime during the first ten days in June following the statewide primary election at an hour and place to be designated by the chairperson of the county central committee of a political party. The county central committee chairperson shall, after appropriate consultation with the central committee, certify the date, time, and location of the convention to the election commissioner or county clerk not later than the first Tuesday in May preceding the primary election. The election commissioner or county clerk shall issue certificates of election to each person elected delegate to the county postprimary convention of a political party and shall notify each person elected of the time and place of the holding of such county postprimary convention. The county central committee chairperson shall cause to be published, at least fifteen days prior to the date of the county postprimary convention, an official notice of the date, time, and place of the convention in at least one newspaper of general circulation within the county.
(2) The election commissioner or county clerk shall deliver to the temporary secretary of each county postprimary convention of a political party the roll, properly certified, showing the name and address of each delegate elected to such convention. Upon receipt of such roll, the convention shall organize and proceed with the transaction of business which is properly before it. A county chairperson, secretary, treasurer, and other officials may be elected. The authority reposed in delegates to the county postprimary convention by reason of their election shall be deemed personal in its nature, and no such delegate may, by power of attorney, by proxy, or in any other way, authorize any person in such delegate's name or on such delegate's behalf to appear at such county postprimary convention, cast ballots at the convention, or participate in the organization or transaction of any business of the convention. In case of a vacancy in the elected delegates, such elected delegates present shall have the power to fill any vacancy from the qualified registered voters of the precinct in which the vacancy exists.