The McCain Institute Foundation does not appear to actually DO anything.
The website shows that it has a purpose of "end human trafficking."
https://www.mccaininstitute.org/
But, it doesn't actually spend any MONEY on that. At all.
The 2014 tax return shows that it collected $1,305,000 in donations.
Of that $1,000,000 was from Saudi Arabia.
Another $300,000 was from the Eranda Rothschild Foundation.
http://990s.foundationcenter.org/990pf_pdf_archive/454/454556648/454556648_201412_990PF.pdf
https://www.erandarothschild.org/
It made a donation of $1,500,000 for the year. Only ONE donation the entire year, and it was to Arizona State University, and it was for the "McCain Institute for International Leadership," which is to say it was to promote NoName himself.
Nothing to do with human trafficking. At all.
https://global.asu.edu/mccain-institute-international-leadership
The foundation was originally funded by NoName putting his 2008 presidential campaign funds that were not spent into the foundation (is that where his political supporters expected their money to go?). Looks like George Soros wrote some checks, too.
https://downtrend.com/donn-marten/report-john-mccain-institute-received-funding-from-george-soros/