The Conservative leader is facing questions after stopping to cheer on an anti-carbon tax convoy camp near the border between New Brunswick and Nova Scotia, where he bluntly accused the prime minister of lying about "everything."

In video filmed by the protesters, who have been living at the site for three weeks, Poilievre tells the group to "keep it up" and calls their protest "a good, old-fashioned Canadian tax revolt."

"Everyone hates the tax because everyone's been screwed over," Poilievre is heard saying in the video, which shows protesters with "Axe the tax" and "F--k Trudeau " signs and flags. A car with 'Make Canada Great Again' scrawled on the rear window is seen parked at the site.

"People believed his lies. Everything he said was bullshit, from top to bottom."