INDC

Set to 3 different clues across 3 published puzzles, most often “Visiting the U.S. capital” — The New York Times, Sunday, 23 November 2008.

4 letters

Every clue on record, most used first

Visiting the U.S. capitalonce
The New York Times — Sunday, 23 November 2008
Where to find Pennsylvania Ave.once
The New York Times — Thursday, 21 April 2005
Where the U.S. Cong. isonce
The New York Times — Sunday, 9 February 2003