In practice, the Governor-General chooses ministers in accordance with the traditions of the Westminster system that the Government be drawn from the party or coalition of parties that has a majority in the House of Representatives, with the leader of the largest party becoming Prime Minister. These ministers then meet in a council known as Cabinet. Cabinet meetings are strictly private and occur once a week where vital issues are discussed and policy formulated. The Constitution does not recognise the Cabinet as a legal entity; it exists solely by convention. Its decisions do not in and of themselves have legal force. However, it serves as the practical expression of the Federal Executive Council, which is Australia's highest formal governmental body. In practice, the Federal Executive Council meets solely to endorse and give legal force to decisions already made by the Cabinet. All members of the Cabinet are members of the Executive Council. While the Governor-General is nominal presiding officer, The Governor-General is bound by convention to follow the advice of the Executive Council on almost all occasions, giving it de facto executive power. A senior member of the Cabinet holds the office of Vice-President of the Executive Council and acts as presiding officer of the Executive Council in the absence of the Governor-General. The Federal Executive Council is the Australian equivalent of the Executive Councils and privy councils in other Commonwealth realms such as the Queen's Privy Council for Canada and the Privy Council of the United Kingdom. A minister is not required to be a Senator or Member of the House of Representatives at the time of their appointment, but their office is forfeited if they do not become a member of either house within three months of their appointment. This provision was included in the Constitution (section 64) to enable the inaugural Ministry, led by Edmund Barton, to be appointed on 1 January 1901, even though the first federal elections were not scheduled to be held until 29 and 30 March. After the 1949 election, Bill Spooner was appointed a Minister in the Fourth Menzies Ministry on 19 December, however his term as a Senator did not begin until 22 February 1950. The provision was also used after the disappearance and presumed death of the Liberal Prime Minister Harold Holt in December 1967. The Liberal Party elected John Gorton, then a Senator, as its new leader, and he was sworn in as Prime Minister on 10 January 1968 (following an interim ministry led by John McEwen). On 1 February, Gorton resigned from the Senate to stand for the 24 February by-election in Holt's former House of Representatives electorate of Higgins due to the convention that the Prime Minister be a member of the lower house.