Gorton called an election for October 1969. Whitlam and the ALP, with little internal dissension, stood on a platform calling for domestic reform, an end to conscription, and the withdrawal of Australian troops from Vietnam by 1July 1970. Whitlam knew that, given the ALP's poor position after the 1966 election, victory was unlikely. Nevertheless, Whitlam scored an 18-seat swing, Labor's best performance since losing government in 1949. It also scored a 7.1 per cent two-party swing, the largest to not result in a change of government. Although the Coalition was returned for an eighth term in government, it was with a slim majority of three seats, down from 19 prior to the election. Labor actually won a bare majority of the two-party vote and only DLP preferences, especially in Melbourne-area seats, kept Whitlam from becoming prime minister. The 1970 half-Senate election brought little change to Coalition control, but the Liberal vote fell below 40 per cent for the first time, representing a severe threat to Gorton's leadership.