President Biden and Canadian Prime Minister Justin Trudeau are set to hold a joint press conference in Ottawa on Friday to mark Mr. Biden's first trip to the country as president. Trudeau welcomed Mr. Biden outside the Canadian Parliament in the capital, where the two leaders were set to hold a bilateral meeting before Mr. Biden addresses Canadian lawmakers. Following their press conference, Trudeau will host the president and first lady for a gala dinner. In his remarks to the Canadian Parliament, the president "will underscore how the U.S.-Canada partnership benefits not only our two countries but the entire world,…