Who is Al Franken?
The Democrat, who is in his second term, is taking part in "Jeopardy" Power Players Week for charity.
Franken is representing the USO – if he wins, he'll earn a minimum of $50,000 for the organization. The two non-winners will sill get $10,000 each for their cause.
Republican commentator Ann Navarro (playing for Smile Nicaragua), and ABC News legal correspondent Sunny Hostin (who's representing the Bronx Children's Museum).
The episodes during Power Players Week each feature three "newsmakers." That includes politicians such as Franken, media personalities (Chuck Todd and S.E. Cupp were on Monday), and artists ("Mad Men" creator Matthew Weiner is on Friday's episode).
The episode will air at 3:30 p.m. on NBC.
If any of the questions involve drawing a freehand map of the U.S., Franken should be in good shape.