to a more equitable system of representation should not be underestimated. It ranks as one of the few instances in Australian political history when a politician initiated a reform knowing full well that it would put his own party at a disadvantage. In addition to electoral reform, Hall also introduced improvements in social welfare, aboriginal affairs and abortion regulation. Hall also began the distribution of fluoridated water in South Australia in 1968. Hall served as his own Treasurer for two months in 1970. Hall and Stott soon fell out over the location of a dam. Stott wanted the dam built in his electorate while Hall thought it more use to locate it elsewhere. Constituent anger forced Stott to vote against the Hall government, forcing an election for June 1970. As expected, Labor regained power, taking 27 seats to the LCL's 20. As a measure of how distorted the Playmander had been, Labor won easily despite picking up a swing of only 0.1 percent. Hall remained Leader of the Opposition for two years before resigning from the LCL on 15 March 1972, claiming that the party had 'lost its idealism [and] forgotten...its purpose for existence'. He founded the Liberal Movement, a progressive liberal party that initially included about 200 former LCL members. Hall and his fellow LM members helped the Dunstan Government introduce adult suffrage and proportional representation for Legislative Council of South Australia elections. After much of his base was transferred to the Yorke Peninsula-based seat of Goyder before the 1973 state election, Hall ran as the Liberal Movement candidate there and won. Federal politics Hall won a federal Senate seat for the Liberal Movement at the double dissolution 1974 election, after resigning his state seat, which sparked a Goyder by-election. At the Joint Sitting of Parliament, Hall supported the Labor government's three electoral reform Bills, citing his experience as South Australian Premier. During the 1975 Australian constitutional crisis, though opposed to the Whitlam government, Hall joined Labor (and independent Cleaver Bunton) in voting against the deferral of supply bills. Hall was re-elected at the 1975 election. He became a member of the Liberal Party in June 1976 after the Liberal Movement reintegrated into the LCL, which was renamed to match with its interstate counterparts. He resigned from the Senate on 16 November 1977 to unsuccessfully contest the seat of Hawker in the House of Representatives. Premier Dunstan appointed Janine