Tony Abbott's sister Christine Forster challenges him to allow conscience vote

By James Massola and Judith Ireland
Updated July 3 2015 - 10:13pm, first published 10:49am
Christine Forster, sister of Tony Abbott, wants a Liberal MPs to have a free vote. Photo: Ben Rushton
Christine Forster, sister of Tony Abbott, wants a Liberal MPs to have a free vote. Photo: Ben Rushton
Prime Minister Tony Abbott on Thursday.  Photo: James Brickwood
Prime Minister Tony Abbott on Thursday. Photo: James Brickwood
Government leader in the Senate Eric Abetz opposes same-sex marriage. Photo: Andrew Meares
Government leader in the Senate Eric Abetz opposes same-sex marriage. Photo: Andrew Meares
Christine Forster, sister of Tony Abbott, wants Liberal MPs to have a free vote. Photo: Steven Siewert
Christine Forster, sister of Tony Abbott, wants Liberal MPs to have a free vote. Photo: Steven Siewert