Postal vote on same-sex marriage likely to face High Court challenge

Labor, the Greens and crossbenchers have blocked the government's proposed plebiscite on same-sex marriage in the Senate. It means the government will now hold a postal vote. Experts have raised questions over the logistics of holding this type of ballot within such a short amount of time, while a legal challenge has already been unveiled.

Marriage equality advocates outside Parliament House in Canberra Source: AAP