President Donald Trump, marking Memorial Day at Arlington National Cemetery on Monday, waded into politics during remarks to pay tribute to those who died in America's wars. Trump took a swipe at the previous administration after speaking about the first soldiers who died at Bunker Hill. "Those young men could never have known what their sacrifice would mean to us, but we certainly know what we owe to them. That valor gave us the freest, greatest and most noble Republic ever to exist on...