CNN’s Phil Black speaks with Leonid Volkov, chief of staff to Russian opposition leader Alexey Navalny, about why Volkov believes Russian President Vladimir Putin is responsible for the suspected poisoning of the outspoken Kremlin critic.
CNN’s Phil Black speaks with Leonid Volkov, chief of staff to Russian opposition leader Alexey Navalny, about why Volkov believes Russian President Vladimir Putin is responsible for the suspected poisoning of the outspoken Kremlin critic.

