Party discipline in Parliament is so strong that many analysts now argue that the Commonwealth does not have a system of responsible government, but a system of responsible government.  For Hamer (1991: 41), for example: “What we have now is not responsible government; It`s a party government. Australia has viewed all laws as a vote of confidence and any legislation amended by the House of Representatives against the will of the government as a vote of no confidence against that government. The strength of the parties in Canberra resonates in many ways in the political system and fundamentally influences the relationship between Parliament and government, as well as the prospects for the application of parliamentary responsibility and government accountability (Evans 1993a). Here is Elaine Thompson`s summary: However, to the dismay of her left-wing supporters, the government has decided to negotiate managers… At midnight, a conference was held in the final hours of a meeting and the resulting compromise searched two houses of exhausted members. The Senate insisted on 19 of its amendments, and seven others were passed subject to amendments; In detail, it was a victory for the Senate, but the government has gained the substance of its three main principles. (Sawer 1963: 17) The hypertrophy of the Senate, and thus the number of senators to be elected at each election in each state, has made it increasingly easy for smaller parties to win seats (see Sharman 1986). As we have seen, the vote rate for a half-senate election, where six senators are elected in each state, is only 14.3 per cent of the national vote. And if, after a double resolution, an election is scheduled and the 12 Senate seats of all states are at stake, the 7.7% rate is almost halved. With the expansion of the Senate, the size of both ratings has decreased.
However, the absence of one-party control of the Senate also depends on the relatively equal support enjoyed by the two major political forces since the 1949 election. Modern Australian politics has not been marked by anti-overwhelming elections. For a party to win four of the six seats running in a state general election, it would need to win 57.2% of the vote, four times the 14.3% of the vote needed to win each seat – and since the Senate was expanded in 1984. Never before has a party won such a large majority in a state`s parliamentary elections.