Support for an Indigenous voice to parliament is slipping, but a narrow majority still favours the move, a special Newspoll has found.
Backing for the voice fell from 56 per cent at the start of the year to 53 per cent in the latest survey, the poll for The Australian shows.
The total vote for those against the proposal rose only a point to 38 per cent but those saying they were strongly in favour of the proposal fell from 28 per cent in February to 25 per cent in the latest poll.