Donald Trump plans to hold unprecedented military 'farewell event' with a 21-gun salute, color guard and martial music when he boards Air Force One for Mar-a-Lago on morning of Biden's inauguration President Donald Trump will hold an unprecedented farewell event at Joint Base Andrews the morning of Joe Biden's inauguration He will hold it at the base where Air Force One is headquartered He'll then fly to Mar-a-Lago before Biden takes the oath of office That makes unlikely he and Melania will host Joe and Jill for traditional coffee But it will let Trump use call sign 'Air Force One'...