Jamaica Labour Party come out on top in the first ballot, with Shearer and Robert Lightbourne being the other candidates. Under Shearer, the JLP lost power for the first time to the People's National Party and Michael Manley in 1972. Shearer served as Opposition Leader until 1974. Bustamante finally gave up the post of party leader in 1974, and Edward Seaga was elected his successor. The party lost the 1976 elections, but Seaga became Prime Minister after victory in 1980 when the party won by a landslide, capturing 51 of the then 60 parliamentary seats. In 1983 with the JLP achieving a spike
Deputy Leader of the Labour Party (UK) of the Party until a new leader is elected. If a vacancy in the leadership occurs while the Labour Party is in government, then the Cabinet, in consultation with the National Executive Committee of the Labour Party, chooses a new leader, who serves until a new leader is elected. To date, the only Deputy Leaders who have gone on to become the elected leader of the Labour Party are Clement Attlee and Michael Foot. Margaret Beckett briefly served as Labour leader following the unexpected death of John Smith in 1994. Harriet Harman was leader after Gordon Brown resigned in 2010