Trump's Gettysburg disaster
It was bad, very bad. This lede from the Washington Post says it all:
Donald Trump traveled Saturday to the site of the bloodiest battle of the Civil War, where he suggested that the United States is nearly as divided now as it was then. But instead of laying out his vision for uniting the country, as President Abraham Lincoln once did here, Trump declared that the system is rigged against him, that election results cannot be trusted, that Hillary Clinton should have been barred from running for president, that the media is “corrupt” and that he will sue all of the women who have accused him of sexual assault.
He actually called it "hollowed ground."