After five years of more or less political calm in Russia, a growing movement has emerged in opposition to President Vladimir Putin and his authoritarian government. But while the last big wave of protests, in 2011 and 2012, contained a wide range of political groups demanding fair elections and democratic rights, the new movement is completely dominated by one man: the right-wing populist Alexei Navalny.

Other well-known opposition leaders have been eliminated in various ways. The radical Left Front leader Sergey Udaltsov was imprisoned five years ago. The prominent liberal Boris Nemtsov was assassinated in 2015. And other opposition figures, such as Gerry Kasparov and Ilya Ponomarev, have been driven into exile.

Navalny has survived the crackdown relatively unscathed, continuing his political campaigning in comparative freedom. But whether he will be allowed to challenge Putin in next year’s presidential election is another question.