The US Treasury Department plans to put President Donald Trump’s signature on all new US paper currency, the agency announced Thursday. The move would be a first for a sitting president, since traditionally, US paper currency carries the signatures of the treasury secretary and the treasurer, not the president. It is the latest instance of Trump putting his name and likeness on American cultural institutions, following his renaming of the US Institute of Peace, the Kennedy Center performing arts venue, and a new class of battleships, among other tributes.