Jailed Russian opposition politician Alexei Navalny's chief of staff said worsening prison conditions were threatening his health as his Anti-Corruption Foundation prepares to turn upcoming local elections in Moscow into an anti-war vote.
Navalny was arrested in January last year when he returned to Russia from Germany, where he had been treated for what Western laboratory tests showed was a near-fatal attempt to poison him in Siberia with a Soviet-era nerve toxin. Russia denies trying to kill him.
