 After Ravalomanana resigned and Rajoelina took power, Andriamanjato officially succeeded Marcel Ranjeva as Minister of Foreign Affairs at a ceremony on March 23, 2009.On 8 September 2009, Andriamanjato was promoted to the rank of Deputy Prime Minister, while retaining the foreign affairs portfolio.A few months later, he resigned from the government on 12 February 2010.