Russian State Duma( Госуда́рственная Ду́ма) It is the lower house of the assembly of the Russian Federation and the permanent legislative body of Russia, with a total of 450 seats. Its membership is Russian citizens over the age of 21, with a term of office of 5 years. Its main responsibilities include drafting and formulating laws, passing or rejecting the president's nomination of the prime minister, etc.