31. What are the provisions on 'ear marking' direct public funding to political parties (how it should be used)?

Each major political party is entitled to $4 million (plus cost-of-living adjustments) to finance its national Presidential nominating convention. A qualified minor party may become eligible for partial convention funding based on its Presidential candidate's share of the popular vote in the preceding Presidential election. A party convention committee may not spend more than the amount to which the major party is entitled.

See FEC's website: https://transition.fec.gov/pages/brochures/pubfund.shtml

Convention funding earmarked to finance the Presidential nominating convention.