Ferenc Nagy, the democratically elected Prime Minister of Hungary, resigns from office after blackmail from the Hungarian Communist Party accusing him of being part of a plot against the state. This grants the Communists effective control of the Hungarian government.

Ferenc Nagy was a Hungarian politician of the Smallholders Party who served as Prime Minister of Hungary from 1946 until his forced resignation in 1947. He was also a Speaker of the National Assembly of Hungary and a member of the High National Council from 1945 to 1946. Nagy was the second democratically elected prime minister of Hungary, and would be the last until 1990 not to be a Communist or fellow traveler. The subsequent Hungarian prime minister Imre Nagy was unrelated to him.

The prime minister of Hungary is the head of government of Hungary. The prime minister and the Cabinet are collectively accountable for their policies and actions to the Parliament, to their political party and ultimately to the electorate. The current holder of the office is Viktor Orbán, leader of the Fidesz – Hungarian Civic Alliance, who has served since 29 May 2010.

The Hungarian Communist Party, known earlier as the Party of Communists in Hungary, was a communist party in Hungary that existed during the interwar period and briefly after World War II.

May 31 is the 151st day of the year in the Gregorian calendar; 214 days remain until the end of the year.