Link to an article by David Cay Johnston:
“21 Questions For Donald Trump”
Johnston is an annoying “grandstander” but no doubt Trump had some shady business dealings.
Bonus links: “Why Donald Trump Is so Scary,” “Republican Machismo vs Hillary Clinton” and “The Spectacle of American Violence and the Cure for Donald Trump” and “The Rich Boy: the Art of Trump L’Oeil Politics” and “Why Donald Trump is (Mostly) Right About the Middle East”