President Frank Underwood Added to National Portrait Gallery at 'House of Cards' Season Premiere

Attendees got a treat at the Smithsonian's surprise unveiling.

Attendees got a special treat at the event, hosted by the Smithsonian's National Portrait Gallery, when the museum unveiled a new portrait of President Frank Underwood.

What's more, Spacey attended the private presentation -- and spoke to its guests -- in character as President Underwood.

“I’m pleased that the Smithsonian continues to prove itself as a worthwhile institution,” Spacey said while playing Underwood at the event, according to the Smithsonian. “I’m one step closer to convincing the rest of the country that I am the president.”