The Nationals leader has taken a leaf out of One Nation's book as politicians spar over the contentious changes to tax on investments Labor is trying to push through parliament within days.
One Nation Leader Pauline Hanson has raised millions of dollars for an anti-Labor advertising campaign using the "fire the liar" line.
Matt Canavan said he would work with anyone to get rid of the government and Treasurer Jim Chalmers "should go", following contentious tax changes in the budget.
"Everyone wants to fire the liar," the Nationals leader told Seven's Sunrise program on Monday.
A poll released on Monday showed One Nation could win between 54 and 63 seats if an election were held now.
Labor would retain government but could be in minority with between 65 and 74 seats, the DemosAU survey published by Capital Brief shows.
