U.S. Sen. Mitch McConnell and Democratic challenger Alison Lundergan Grimes.
U.S. Sen. Mitch McConnell and Democratic challenger Alison Lundergan Grimes.
U.S. Sen. Mitch McConnell and Democratic challenger Alison Lundergan Grimes.

Group challenges Grimes and McConnell to sign pledge aimed at limiting ads by outside groups

May 28, 2014 6:27 PM