MMOSCOW — He has emerged as Vladimir Putin’s worst nightmare, and his refusal to just go away earned opposition leader Alexei Navalny yet another trip to the jailhouse Monday.
In one of the bigger challenges to the Russian president’s increasingly authoritarian rule, more than 1,000 protesters were arrested across the nation after defying police bans on rallying against Mr. Putin’s long rule and demanding an end to high-level corruption.
