1977
In 1960 Brendan Corish became the new Labour leader. As leader he advocated and introduced more socialist policies to the party. Between 1973 and 1977 the Labour Party formed a coalition government with Fine Gael. The coalition partners lost the subsequent election in 1977. Corish resigned immediately after the defeat.
Read more about this topic: History Of The Irish Labour Party, Labour Under Brendan Corish, 1960