Inside a Billionaire's Decades-Long Campaign to Sever His Fortune's Russian Roots

Len Blavatnik calls himself foremost a self-made billionaire. The Ukraine-born British-American, by his own telling, is also a media mogul, a tech titan, a pioneering real estate investor and an industrialist.

But above all, what Blavatnik has always strived to make clear: He has no connections to Vladimir Putin or Russian politics, and he absolutely should not be described as an oligarch. He’s not even Russian.