Grattan on Friday: why a byelection in Western Australia has turned into a national test for One Nation

If you’re not from Western Australia, the byelection in the state seat of Secret Harbour is unlikely to have been on your radar. But Labor, Liberal and One Nation strategists will be intently watching the result on the night of August 29. Early voting started on Monday in this Labor outer metropolitan seat, which lies mostly within federal Liberal frontbencher Andrew Hastie’s electorate of Canning. In an exit poll of 120 voters reported by the West Australian, half indicated they’d given…