26. Is there a ban on donors to political parties/candidates participating in public tender/procurement processes?

Source: General Law on Political Parties, 2020.       

Artículo 54.
1. No podrán realizar aportaciones o donativos a los partidos políticos ni a los aspirantes,
precandidatos o candidatos a cargos de elección popular, en dinero o en especie, por sí o por interpósita
persona y bajo ninguna circunstancia: f) Las personas morales,            

Article 54.
1. The following may not make contributions or donations to political parties or to aspirants, pre-candidates, or candidates for popularly elected office, in cash or in kind, directly or indirectly, under any circumstances: f) Legal entities,                                            

In Mexico, public tenders with high budgets are focused on companies, which by law are prohibited from contributing to political financing.