Four years ago a Washington park became central to one of the most infamous moments in US political history, but on Tuesday it was packed full of cheering Kamala Harris supporters waving "FREEDOM" signs. Harris's closing argument to voters took place on the same spot where Donald Trump gave a fiery speech on January 6, 2021 to his backers, who then rioted at the Capitol building to try to undo President Joe Biden's election win. France 24's Douglas Herbert takes a closer look.