Can Kazakhstan move beyond one party rule? Stephen Sackur talks to the chairman of the Kazakh Senate, Kassym-Jomart Tokayev. The country's shiny new capital city, Astana, tells you plenty about the country’s oil wealth and its big ambition to be Central Asia’s regional powerhouse. But all of this cannot mask a nagging question - what happens in this country when the long serving President Nursultan Nazarbayev finally leaves power?(Photo: Kassym-Jomart Tokayev (L), chairman of the Senate of Kazakhstan's Parliament. Credit: Alexander Shalgin\TASS\Getty Images)