Putin challenger Boris Nadezhdin barred from Russia's election - BBC.com
- Putin challenger Boris Nadezhdin barred from Russia's election BBC.com
- Russian anti-war election candidate barred from running against Putin CNN
- Russia bans anti-war election candidate for being too popular The Telegraph
- Russian election officials reject antiwar politician's bid to oppose Putin in next month's vote ABC News
- Boris Nadezhdin, antiwar candidate, banned from challenging Putin The Washington Post