In 2009 businessman Frederic Bourke was sentenced to 15 years in federal prison for violating the US Foreign and Corrupt Practices Act. The FCPA explicitly states that when US companies and citizens do business overseas they can NOT profit off of corruption. Even if you yourself are not doing anything illegal - if you're partner is bribing officials or misusing their power - as Bourke's partners were in Azerbaijan - than you're liable.
Guess who else is doing business in Azerbaijan (as recently as January)? That's right, Donald J. Trump. And his local partner in the country was Anar Mammadov - a man with a long history of corruption and who has links to the Iranian National Guard.
It's time to subpoena Trump's taxes. As with any corrupt leader - all we need to do is follow the money.