There's a new face in the Russian presidential race. Her name is Ksenia Sobchak and she's been nicknamed the "Russian Paris Hilton". The 36-year-old is a socialite, journalist and TV host who claims she's an "anti-system" candidate. But Sobchak's family links to President Vladimir Putin have given rise to doubts about her candidacy. Our Moscow correspondents followed the launch of her presidential campaign.
Programme prepared by Patrick Lovett and Charlotte Prudhomme.