Don't be ridiculous.  Are you so ignorant to not know the way the Senate has worked since confederation?
The party in power if it stays in power long enough secures the majority of the Senate.

The idea was that the composition of the Senate would change slower over time than the HoC, so that governments that win sequential majorities, who thereby have indicated they are governing well enough to win most of the seats in sequential elections, those governments be ceded the power of the majority of both the HoC and Senate to further a sustained mandate.  An election of a HoC in a fluke angry election, or a reactionary minority is restrained by virtue of the much slower shift of power in the Senate.