CANBERRA, AUSTRALIA - SEPTEMBER 14: Minister for Social Services Scott Morrison arrives at the Liberal party room for the leadership ballot at Parliament House on September 14, 2015 in Canberra, Australia. Malcolm Turnbull announced this morning he would be challenging Tony Abbott for the Liberal Party leadership. (Photo by Stefan Postles/Getty Images)

CANBERRA, AUSTRALIA - SEPTEMBER 14:  Minister for Social Services Scott Morrison arrives at the Liberal party room for the leadership ballot at Parliament House on September 14, 2015 in Canberra, Australia. Malcolm Turnbull announced this morning he would be challenging Tony Abbott for the Liberal Party leadership.  (Photo by Stefan Postles/Getty Images)