The Ontario government sponsored Fox News host Sean Hannity’s prime-time interview with Donald Trump and Elon Musk, part of the multimillion-dollar advertising campaign the province is rolling out as the U.S. President repeatedly threatens to impose tariffs on Canadian goods.

While the campaign is expected to cost tens of millions of dollars, the province is refusing to say exactly how much money is being spent on the ads, including the one for Hannity, one of the highest-rated U.S. cable news shows. Fox also did not respond to requests for comment about the cost and frequency of the ads.