GUELPH - Ontario Premier Doug Ford said Thursday he believes his government will ultimately be successful in its push to expand Toronto's island airport to allow jets to land, but he is not indicating how he'll achieve that.

The land that Billy Bishop Toronto City Airport sits on was governed as a tripartite agreement formerly between the city of Toronto, the federal government and the Toronto Port Authority, which is a federal agency, but the province took over the city's role earlier this year.

Prime Minister Mark Carney's government rejected Ford's proposal last month following a consultation largely opposed to the idea of jets.

Carney has said that the results of the federal consultation were clear, but that he is not permanently ruling out allowing jets at the airport because "forever is a long time."

OTTAWA - Experts are warning that U.S. President Donald Trump's threatened new set of tariffs could drive wedges between Canadian provinces, allowing the U.S. to exploit regional grievances to force trade concessions.

The tariffs would have particularly heavy impacts on industries concentrated in B.C. and in small towns across Quebec.

"There's an awareness that Canada can be a punching bag for the United States, but different parts of the country can be treated differently," said University of British Columbia political scientist Stewart Prest.

"At the extreme, that does lend itself to a divide-and-conquer strategy, which Canadians really have to be aware of."