The National Assembly is the parliament of Hungary. The unicameral body consists of 199 members elected to four-year terms. Election of members is done using a semi-proportional representation: a mixed-member majoritarian representation with partial compensation via transfer votes and mixed single vote; involving single-member districts and one list vote; parties must win at least 5% of the popular vote in order to gain list seats. The Assembly includes 25 standing committees to debate and report on introduced bills and to supervise the activities of the ministers. The Constitutional Court of Hungary has the right to challenge legislation on the grounds of constitutionality.

The Hungarian People's Republic was a one-party socialist state from 20 August 1949 to 23 October 1989. It was governed by the Hungarian Socialist Workers' Party, which was under the influence of the Soviet Union. Pursuant to the 1944 Moscow Conference, Winston Churchill and Joseph Stalin had agreed that after the war Hungary was to be included in the Soviet sphere of influence. The HPR remained in existence until 1989, when opposition forces brought the end of communism in Hungary.