On this date in 1993, Prime Minister Brian Mulroney was in the midst of one of the most remarkable visits ever made to the U.S. by a sitting PM of Canada.George H. W. Bush, who had been defeated by Bill Clinton in November of 1992, spent the last weekend of his Presidency at Camp David.  And in an unprecedented move, he invited a foreign leader, our own PM, to share the moment with him at the Presidential retreat in Maryland.The Bush Sr.-Mulroney relationship remains the closest one to ever have developed between a Canadian Prime Minister and U.S. President.“It was an extraordinary weekend and a high honour to have been invited, as a Canadian Prime Minister, to spend those two historic days with President Bush and his fabulous Barbara,” Mulroney later wrote in his Memoirs.Many years later former Prime Minister Mulroney would deliver one of the eulogies at the State Funeral of President Bush.  Click here for CTV's article in which they posted Mr. Mulroney's moving tribute to his friend.[caption id="attachment_532784" align="aligncenter" width="480"] President George Bush and Prime Minister Brian Mulroney[/caption]Arthur Milnes is an accomplished public historian and award-winning journalist.  He was research assistant on The Rt. Hon. Brian Mulroney’s best-selling Memoirs and also served as a speechwriter to then-Prime Minister Stephen Harper and as a Fellow of the Queen’s Centre for the Study of Democracy under the leadership of Tom Axworthy.  A resident of Kingston, Ontario, Milnes serves as the in-house historian at the 175 year-old Frontenac Club Hotel.