Russian opposition leader Alexei Navalny nominated for presidency

Hundreds of supporters of Russian opposition leader Alexei Navalny have endorsed him for the presidency and prepared to file his nomination with election officials, putting pressure on the Kremlin to allow him to run.
President Vladimir Putin's most formidable foe in all his 18 years in power, Mr Navalny is barred from running because of a criminal conviction that is largely viewed as political retribution.