BBC World: What wealthy presidents of Latin America did with fortune when they came to power (and the differences with Trump)
"Some of the things that concern us are things we've seen happen in other countries, and they've learned," BBC's Spanish-language service, Larry Noble, the general counsel of the Washington-based NGO Campaign Legal Center, told BBC World...
But Noble believes the information found there is restricted.
"The solution he found was then putting the business under the control of his children," says the expert.
"We indicated that in other countries this had been a problem, that sometimes the way a leader of a country enriches is enriching his family," he adds.