Should this amount ($1.86 US) be insufficient to boost your sagging coffers, may I suggest you approach your "Spanish Outreach Adviser" Juan ("Dual-Citizenship-Holding-Pro-Open-Borders-Anti-American-Latino-Supremacist-Pandering") Hernandez.
I would imagine he would be more than happy to tap into his reserves even if need be funneled thru his fellow associates within the Mexican Government.
Should that fail, why not reach out to the 12-20 million "Undocumented Immigrants" you so want to grant Amnesty? I cannot imagine that they would not gladly contribute?
Vaya Con Dios Muchacho. Mi Casa is NOT Su Casa, Get It?
Everyone should send such a letter to his campaign office. I had thought about sending him a Mexican flag to adorn his mantle, but he probably already has one of those.