Sky News host Andrew Bolt says Indigenous Australians Minister Linda Burney gave “the most disastrous speech” at the National Press Club in an attempt to try to sell the Voice.

He said there is no excuse for a speech so “sloppy, and irrational and deceitful” after Ms Burney tried to “guilt trip” Australians to back the Voice.

“It was so bad, I wonder if it’s going to kill the Voice for good,” Mr Bolt said.

“But Burney’s biggest con today came when she tried to tackle a great fear about this Voice that it could go nuts,” Mr Bolt said.

“Australia risks making a shocking mistake that will change this country forever.”