Russia: Why is the Yabloko party barred from the elections?

Russia's supreme court has banned the anti-war opposition party Yabloko from September's parliamentary elections. What does this mean for the election campaign, opponents of the war and for the political mood in Russia?

Russia's supreme court has banned the anti-war opposition party Yabloko from September's parliamentary elections. What does this mean for the election campaign, opponents of the war and for the political mood in Russia?