When the Labor first held office under Chris Watson, Watson used the right to choose members of his Cabinet. In 1907, however, the party decided that future Labor Cabinets would be elected by the members of the Parliamentary Labor Party, the Caucus. The Prime Minister would allocate their responsibilities. The Labor Prime Ministers had a lot of influence over who was elected to Labor ministries, although the leaders small groups inside the party also had a lot of power. Prior to the 2007 general election, Kevin Rudd, said that he and he alone would choose the ministry if he become Prime Minister. His party won the election and he chose the ministry, as he said he would.