Various ideological beliefs were factionalised under reforms to the ALP under Gough Whitlam, resulting in what is now known as the Socialist Left who tend to favour a more interventionist economic policy and more socially progressive ideals, and Labor Right, the now dominant faction that tends to be more economically liberal and focus to a lesser extent on social issues. The Whitlam Labor government, marking a break with Labor's socialist tradition, pursued social-democratic policies rather than democratic socialist policies. In contrast to earlier Labor leaders, Whitlam also cut tariffs by 25 percent. Whitlam led the Federal Labor Party back to office at the 1972 and 1974 federal elections, and passed a large amount of legislation. The Whitlam Government lost office following the 1975 Australian constitutional crisis and dismissal by Governor-General John Kerr after the Coalition blocked supply in the Senate after a series of political scandals, and was defeated at the 1975 federal election in the largest landslide of Australian federal history. Whitlam remains the only Prime Minister to have his commission terminated in that manner. Whitlam also lost the 1977 federal election and subsequently resigned as leader.