Shorten back on the campaign trail in WA

Opposition Leader Bill Shorten is back in Perth to continue campaigning ahead of next month's "Super Saturday" federal by-elections.

The Labor leader was on the hustings in Western Australia less than a month ago, and returned on Tuesday night for a town hall meeting in Stirling, held by Liberal Human Services Minister Michael Keenan.

The federal seat is firmly in the opposition's crosshairs for next year's full election.

Mr Shorten will then face media in the federal seat of Perth on Wednesday, which along with Fremantle is expected to be retained by Labor next month.

The Liberals are not even bothering to field candidates for the seats.

But the coalition believes it has a chance to snatch Longman in Queensland, which went heavily to Labor in 2016, by using One Nation preferences.

The government is also a chance in Braddon in Tasmania and Mayo in South Australia.