Serpent on the Rock by Kurt Eichenwald

I would say this book should probably be required reading as we head into the Trump presidency.

This is the sales pitch:  A real-life thriller—the story of kickbacks and payoffs, of shady deals struck in secret with known felons; a story in which half a million people lose enormous sums—some their life’s savings—in the largest securities fraud of the 1980s, with names like Onassis and Bush numbered among the victims.