 The issue caused significant tension within the Abbott Government (2013–15), which resolved in August 2015 to hold a national vote on same-sex marriage, sometime after the 2016 federal election, in the form of either a plebiscite or constitutional referendum.This policy was maintained by the Turnbull Government (2015–18) after Malcolm Turnbull (a supporter of same-sex marriage) replaced Abbott as Prime Minister following a leadership challenge.The bill to establish the plebiscite (which would have been held on 11 February 2017) passed the House of Representatives by 76 votes to 67 on 20 October 2016, though was rejected by the Senate the following month by 33 votes to 29, after the Government failed to attract the support of the opposition Labor Party, minor party the Greens and several Senate crossbenchers.