Trivia: These 3 senators have what in common?

The Washington Post
August 20, 2013 AT 11:13 AM
This week's seriously tough Capitol Hill trivia question also features a fun fact about former Sen. Fred Thompson (R-Tenn.), who celebrated his 71st birthday this week. Use the hashtag #InPlay to send us your answer, and we'll announce the name of the first person to tweet the right answer on the next day's "In Play." Good luck!