Evo Morales won the 2005 presidential election with 53.7% of the votes in Bolivian elections. On 1 May 2006, Morales announced his intent to re-nationalize Bolivian hydrocarbon assets following protests which demanded this action. Fulfilling a campaign promise, on 6 August 2006, Morales opened the Bolivian Constituent Assembly to begin writing a new constitution aimed at giving more power to the indigenous majority.