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.

U.S. President Donald Trump on Thursday signed an executive order increasing tariffs on Canadian goods to 35% from 25% on all products not covered by the U.S.-Mexico-Canada trade agreement, the White House said.

As the August 1 deadline for new tariffs looms, Canada and Mexico, two of the largest trading partners of the U.S., find themselves without exemptions. With President Trump's 'Liberation Day' strategy in full swing,