Who is left to take on Vladimir Putin?

Overview

Mikhail Khodorkovsky is back to challenge Putin’s grip on power. Once Russia’s richest man and head of energy giant Yukos, he spent a decade in jail after challenging the Kremlin. His takedown sent a strong signal to Russia’s powerful tycoons not to meddle in politics. For the first time after his release, he talks about his time behind bars and his vision for a new Russia. He relaunched the Open Russia Movement to strengthen democracy in Russia - a move towards presidency?