Republican lawmakers want a $250 bill featuring President Trump for the nation's 250th anniversary celebration , but the proposal faces legal and legislative hurdles. Why it matters: Federal law bars living people from appearing on U.S. currency, creating a significant obstacle to the proposal without congressional action. State of play: The Washington Post reported Thursday that, despite the stalled legislation, U.S. Treasurer Brandon Beach and his senior adviser requested prototypes of the $250 bill. The Treasury Department already announced that the president's signature will appear on paper currency to honor the nation's 250th, a first for a sitting president. Catch up quick: A Treasury spokeswoman confirmed to Axios that in response to "active legislation," the Bureau of Engraving and Printing (BEP) was "moving proactively" to produce the "commemorative note" and "conducting appropriate planning and due diligence." Rep.…