U.S. President Donald Trump's successive announcements of deals setting baseline tariffs on the European Union and Japan are prompting questions about whether they're a road map for Canada to follow in trade talks.

O TTAWA—Canadian Prime Minister Mark Carney said bilateral talks with Washington to resolve the tariff row might not lead to a deal before the Aug. 1 deadline. Senior officials are in Washington to find an agreement that is suitable for Canada, Carney said.

The U.S.-EU trade agreement imposes 15 percent tariffs on most European imports, avoiding the 30 percent levies that President Trump had threatened. Critics argue the deal disproportionately favors