Donald Trump's latest post criticizing Canada's trade relationship with the US may have a negative impact on the stock market, particularly for companies that rely heavily on US-Canada trade. Trump's statement that the US is subsidizing Canada by $200 billion a year and providing free military protection may lead to increased tensions between the two countries. This could lead to a decline in trade and investment between the US and Canada, which could negatively impact the stock market. Furthermore, Trump's statement that the US does not need Canada's products, such as cars, energy, and lumber, may lead to a decline in the stock prices of Canadian companies that export these products to the US. On the other hand, Trump's statement that he looks forward to meeting the new Prime Minister of Canada and wants to work with him may suggest that he is open to negotiating a new trade deal, which could potentially benefit the stock market in the long run. However, given Trump's history of protectionist trade policies, it is likely that his criticism of Canada's trade relationship will have a negative impact on the stock market.