cannot reach a compromise, or the Duma insists on passing the bill as is, the veto of the Federation Council can be overridden, if two thirds of the Duma's constitutional composition vote in favor of the bill. The State Duma and the Federation Council usually meet separately. Joint sessions are organized when: President of Russia delivers his annual address to the Federal Assembly; For hearing of addresses of the Constitutional Court of Russia; To hear the speeches of leaders of foreign States. Parliamentary centre In the mid 2000s it was suggested that the Parliamentary centre of the State Duma and Federation Council be combined into one building. In 2012, the idea was supported by President Dmitry Medvedev. Reasons cited for the construction of a new building included the cramped nature of the parliament members' current offices, the remote locations of these offices split across ten locations in Moscow, and the desire of the government to move the bodies away from the city centre to reduce traffic congestion. Various areas of Moscow were examined to serve as the new parliamentary center: Kutuzovsky Prospekt, Frunzenskaya embankment, "Moscow City", Tushino airfield, Krasnaya Presnya, Moskvoretskaya embankment, Park Museon and the Sofia embankment. In September 2014, the Mnyovniki floodplain was selected, a decision which was protested by ecologists. The design of the new building was to be decided on the basis of an architectural competition. The parliamentarians, however, disagreed on aesthetic decisions between candidates in the competition, which were not resolved when the contest was conducted a second time. Financing issues caused complications. Originally, the Parliamentary center was to be funded by private investors, who would in turn receive ownership of a building currently belonging to the State Duma and the Federation Council, as well as permits to tear it down and replace the building with their own development projects (such as hotels). An objection to this plan was lodged by architectural critic Grigory Revzin, arguing that the State Duma is located in the building of the Council of Labor and Defense which was designed by Arkady Langman and built in 1935, rendering the existing State Duma building an architectural monument, which would be protected by the state and cannot be demolished. Work on the parliamentary center was to begin in 2020. However, in 2016 it was postponed to an unknown date due to the economic situation and disagreements on what the center should look