Mr. Costello, a former manager of the Rutanian Agribusiness Association, was the United Voice's primary spokesman and presidential candidate in the 3625, 3629, and 3633 election. He was also a parliamentary representative from the Ardinia province and served as the nation's Minister for Food and Agriculture from 3625 until 3637. According to United Voice party rules: Preselections (and other internal ballots) are held with both organisations and the membership base retaining a say, where each grouping is weighted at 50% of the total ballot.