Some of the props parading past the President, who rose to fame as a star of reality TV, had their own television pasts. For instance, cartridge boxes had previously supplied Paul Giamatti when he played a mossy-toothed John Adams in a 2008 miniseries. Canteens had been carried by Mel Gibson and his castmates in Roland Emmerich’s 2000 action flick, “The Patriot.” Other bits and bobs had been seen on the History Channel, furnishing the Continental Army and, on the CW, a vampire who deployed with First World War infantry in France.journey-inline-newsletterinline-newsletter