Kazakhstanis are voting Sunday in a referendum on a new constitution that analysts say could allow President Kassym-Jomart Tokayev to extend his hold on power beyond his current term. Tokayev frames the changes as necessary for swift decision-making in a changing world, but analysts say the reforms — which would merge parliament’s two chambers into one and give the president sole authority to appoint government officials — would consolidate Tokayev's power and could be use to reset presidential term limits.