President Biden's video conference with Prime Minister Trudeau in February 2021 to restore the relationship that was shifted by former President Trump:
President Barack Obama's speech at a joint press conference with Prime Minister Stephen Harper where he says "The United States and Canada are not simply allies, not simply neighbors; we are woven together like perhaps no other two countries in the world.
Bill Clinton's Address to the Canadian Parliament February 23, 1995 (reaffirming the ties between the US and Canada, Clinton's clear support of a united Canada during the period of possible Quebec separation, and where he famously says that "Canada stands as a model of how people of different cultures can live and work together in peace, prosperity and mutual respect."):
Official Leader of the Opposition, Brian Mulroney, met with President Ronald Reagan on June 21, 1984, prior to becoming Prime Minister in the fall of 1984 proving Reagan's eagerness to do business with Mulroney: