The president's greatest power is the ability to choose the prime minister. However, since the French National Assembly has the sole power to dismiss the prime minister's government, the president is forced to name a prime minister who can command the support of a majority in the assembly (It is nonetheless worth noting that, since 2002, the legislative elections are held a few weeks after the presidential, a majority supporting the president's party is therefore very likely to be obtained). They have also the duty of arbitrating the functioning of governmental authorities for efficient service, as the head of state of France.