The Queensland government has effectively been given "permission" from a union boss to dump deputy premier Jackie Trad, according to a political analyst.
Griffith University political analyst Paul Williams believes it's almost inevitable that Ms Trad will go.
Mr Williams suggested Premier Annastacia Palaszczuk now has the Left's "permission" to move against her.
His comments came after CFMEU construction and general branch state secretary Michael Ravbar demanded Ms Trad's resignation.
At a rowdy rally at parliament house on Thursday he told her to quit as treasurer and deputy premier if he wanted Labor to hang on at the next election.
Ms Trad is still waiting to hear if the Crime and Corruption Commission will formally investigate the purchase of an investment property along the route of the $5.4 billion Cross River Rail project she has overseen.
She says she's done nothing wrong.
"It's one thing for Deb Frecklington to call for Trad to go. It's quite another to hear that from a senior member of the Left," Mr Williams told AAP on Friday.
"If a very loud voice on the Left says 'it's OK, you have our permission', then it means she can act without risking a revolt."
Labor's dominant Left faction has been warring over Jackie Trad's future in the lead-up to the party's state conference in Brisbane this weekend which is set to feature federal Labor leader Anthony Albanese.
Australian Associated Press