The Globe and Mail reports in its Saturday edition that U.S. President Donald Trump returned to power two years ago with a clear desire to bend Canada to his will. The Globe's Tim Shufelt writes that every attempt, however, to apply economic force seems to collide with America's own interests. It seems the closer the President gets to causing Canada harm, the more he strikes at the connective infrastructure between the two economies. Mr. Trump wants more Venezuelan oil, but replacing Canadian supplies is another matter. The scheme to take control of 65 billion barrels of Venezuelan oil reserves officially put "Canada on notice," Mr. Trump said in August. The President is attempting to replace a long-standing, proven, cost-effective relationship with one that is riskier, unproven and more expensive. Canada supplies nearly four million barrels of oil per day to the U.S., at discounted prices. It travels by pipeline to the Midwest and Gulf Coast, where refineries are specifically tooled to handle it. The Venezuelan oil sector is a mess. Getting back to the country's peak production of three million barrels a day would require at least $150-billion (U.S.) in new investment over the next 10 to 15 years, according to Rystad.