 On the crossbench, the Australian Greens, the Centre Alliance, Katter's Australian Party, and independents Andrew Wilkie, Helen Haines and Zali Steggall won a seat each.A two-party system has existed in the Australian House of Representatives since the two non-Labor parties merged in 1909.The 1910 election was the first to elect a majority government, with the Australian Labor Party concurrently winning the first Senate majority.