Russian opposition leader Alexei Navalny (2nd L), accompanied by his wife Yulia (L) and children Dasha (R) and Zakhar, leaves his apartment building to walk to a polling station in Moscow September 8, 2013. Navalny faced off against an entrenched Kremlin ally on Sunday in a Moscow mayoral election with high stakes for both President Vladimir Putin and his foes. REUTERS/Maxim Shemetov (RUSSIA - Tags: ELECTIONS POLITICS)