17. If there is a limit on the amount a donor can contribute to a political party during an election, what is the limit?

 Law nr 9,504, 1997/2015/2018

Article 23. Individuals may make donations in cash or estimated cash amounts to electoral campaigns, pursuant to the provisions set forth in this Law.(...)Paragraph 1. The donations and contributions referred to in this article shall be limited to: I – in case of individuals, a maximum amount of up to ten per cent of the gross income earned in the year before the election;(...)II – in case of candidates that make use of their own resources, the maximum spending amount as established by their respective parties, as required by this Law.'