Despite pressure from some Australian Labor Party (ALP) members, Workplace Relations Minister Bill Shorten is not taking a shortcut to power by withdrawing support for Prime Minister Julia Gillard.

While he as conceded on Friday that the party is bound for a landslide defeat in the Sept 14 national election and he has not officially spoken amid speculations that he would drop support for Ms Gillard, politicians from the PM and ex-PM Kevin Rudd camps said Mr Short would likely stick by Ms Gillard.

To avoid media, the minister was low profile on Monday, the Queen's Birthday, and instead asked ALP members to focus on the party's campaign to expose the weakness of Coalition leader Tony Abbott rather that push for a Labor leadership change just months to the federal election.

Mr Shorten in known for being a key supporter of Ms Gillard when Mr Rudd attempted in 2010 to grab back power and the prime minister used this to her advantage, saying, "Mr Shorten has indicated publicly that he is supporting me as I get about this important work for the nation."

"I will certainly be leading Labor at the next election," she added.

Ms Gillard dismissed speculations of a leadership change amid reports that Mr Rudd is preparing for another marginal seat rescue mission in Sydney. Cabinet minister Craig Emerson also rejected speculations that a return to power of Mr Rudd would bolster ALP's chance at the September election.

"We should not be going through revolving doors, going forward and back and forward and back," ABC quoted Mr Emerson.

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