The imbalance in President Trump’s treatment of America’s closest trading partners may come from his desire to make Canada the 51st state, some Canadians believe.

Trump has justified tariffs on goods from Canada, the top U.S. export market, by accusing it of failing to stop the cross-border flow of fentanyl, even though U.S. government data shows Canada accounts for only 1% of the fentanyl that enters the United States.

By May Angel, Helen Reid and Jessica DiNapoli LONDON/NEW YORK (Reuters) -U.S. President Donald Trump's trade tariffs are meant to boost domestic manufacturing. But in the chocolate industry, they're doing the opposite: ramping up the cost of importing already-pricey cocoa and hurting the competitiveness of local factories versus Canadian and Mexican outfits that supply the U.