Australian Prime Minister Julia Gillard has firmed as favourite to retain the Labor leadership, according to a leading bookmaker.
Online bookmaker sportsbet.com.au put Ms Gillard at $A1.33 to win a caucus vote should one go ahead next week following Foreign Minister Kevin Rudd's resignation from the cabinet.
Mr Rudd is the $A3.15 outsider, but his odds are expected to shorten as he declares his hand on his return to Australia on Friday.
The coalition is still the $A1.30 favourite to win the next federal election with Labor the $A3.45 outsider.
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