President El Hadj Omar Bongo Ondimba, in power since 1967 and the longest-serving African head of state, was re-elected to another seven-year term according to poll results returned from elections held on November 27, 2005. According to figures provided by Gabon's Interior Ministry, this was achieved with 79.1% of the votes cast. In 2003 the President amended the Constitution of Gabon to remove any restrictions on the number of terms a president is allowed to serve. The president retains strong powers, such as authority to dissolve the National Assembly, declare a state of siege, delay legislation, conduct referendums, and appoint and dismiss the prime minister and cabinet members.