Parliament prepares to set referendum wheels in motion

The PM told colleagues success depended on being on the same page as the referendum working group. (Lukas Coch/AAP PHOTOS) (AAP)

A successful referendum on a voice to parliament will be difficult without bipartisan support, but the prime minister has told his colleagues it won't be impossible.

Attorney-General Mark Dreyfus is expected to introduce a bill to alter the constitution on Thursday, setting the wheels in motion for a referendum to enshrine an Indigenous voice to parliament later this year.