"There are three scenarios: there could be an overwhelming movement next week when we all get back to parliament; the Prime Minister could call for a ballot; or the mood of hysteria could build (to) where another mistake could spark a challenge."
Former Labor Party leader and opposition leader Simon Crean earlier this week attacked Rudd for not being a "team player", further fuelling speculation Mr Rudd will make a move for the party's leadership.
Ms Gillard, who rolled Mr Rudd to become the Prime Minister in 2010, has failed to keep the party ahead in the polls. In the latest Newspoll, Labor's two-party preferred vote sits at 46 per cent, compared to the coalition's 54 per cent. She is still preferred to Liberal Party leader Tony Abbott as Prime Minister, although her approval rating dropped from 36 per cent to 33 per cent since the last poll a month ago.
However the first Galaxy poll of the year, published in the Daily Telegraph earlier this week, found 52 per cent of the voters preferred Mr Rudd as Prime Minister, compared to 30 per cent for Ms Gillard.
- NZ Herald Online staff