Prime Minister Justin Trudeau resumes his attacks on Conservative Leader Pierre Poilievre as he promotes his government's federal budget.

Polls indicate that liberal messages about the budget have yet to resonate - but Trudeau says it is a plan more than what Poilievre has put forward, aside from attempts to exploit public fears.

Trudeau was asked about Poilievre's appearance alongside carbon pricing activists waving flags laden with derogatory terms referring to the Prime Minister.

He responded by saying that every leader must decide how they will operate, and that his Conservative opponent has welcomed the support of conspiracy theories and extremists.

He pointed out that Poilievre has done nothing to disavow the endorsement of noted right-wing commentator Alex Jones.

Jones was ordered to pay nearly a billion dollars in damages to the families of victims of the 2012 Sandy Hook school shooting, which he long portrayed as a hoax.

Trudeau said, "This is the kind of man who says that Pierre Poilievre has the right ideas to bring the country to the right, towards conspiracy theories, towards extremism, towards polarization."

"The fact that he continues to encourage this kind of divisive tactics in Canada that I don't think Canadians want to see really shows that he will do anything to win, anything to stir up anger and fear."