Complex sentence: In 1948, single transferable vote proportional representation on a state-by-state basis became the method for electing Senators, this had the effect of limiting the government's ability to control the chamber and has helped the rise of Australian minor parties.
Split into simpler sentences: In 1948, single transferable vote proportional representation on a state-by-state basis became the method for electing Senators. This had the effect of limiting the government's ability to control the chamber, and has helped the rise of Australian minor parties.