Russian protesters urge boycott of presidential vote even as opposition leader Navalny is arrested

Russian protesters urge boycott of presidential vote even as opposition leader Navalny is arrested  Washington Post Putin Opponents Mount Protests Across Russia Ahead of Vote  Bloomberg Russian police raid opposition HQ as election protests begin  Reuters Navalny Among Dozens Detained At Election Boycott Rallies In Russia  RadioFreeEurope/RadioLibertyFull coverage