Canada's intelligence agencies must immediately inform MPs of any threats against them, regardless of whether those threats are considered credible, Prime Minister Justin Trudeau says.

The small southwestern Ontario city that gained fame more than a century ago as Canada's railway capital is being remade as "the national anchor" of Canada's electric-vehicle supply chain, Prime Minister Justin Trudeau said Friday at the official launch of a new Volkswagen battery plant.

The new numbers have been in development for months but come after a recent report from the parliamentary budget officer on the economic costs of the carbon price. That report did not specifically equate the cost of the price on carbon to the costs of climate change itself.

Canadians in the prairies, two territories and Ontario will pay a bit more to fill their gas tanks or heat their houses next month as the national carbon price rises on Saturday.

Clean electricity was one of the stars of Tuesday's federal budget, with almost $1 in every $8 of new spending the budget anticipates in the next five years targeting Canada's electricity dreams.

A second top-up to GST rebate cheques for low-income Canadians and "significant" new tax measures to keep Canada in the green technology game will be among the highlights in Finance Minister Chrystia Freeland's federal budget on Tuesday.

Finance Minister Chrystia Freeland is set to table a federal budget in the House of Commons on Tuesday afternoon, which a federal source says will include plans to go after predatory lending and more details on dental care as part of a pitch to make life more affordable.

Canada's push for a zero-emission electricity grid will get a significant funding boost in the federal budget on March 28, 2023, including with new tax credits expected to encourage the development of renewable power sources like wind and solar.

Canada and the United States have agreed to have asylum seekers turned back at irregular border crossings across the border, including Roxham Road in Quebec.

Trudeau told reporters Tuesday morning that David Johnston will have access to all relevant documents, including classified information.