U.S. Sen. Mitch McConnell, right, and his wife, former Labor Secretary Elaine Chao, speak with supporters at a Republican dinner in Winchester, Ky., on Saturday, March 2, 2013. A libera

 

              U.S. Sen. Mitch McConnell, right, and his wife, former Labor Secretary Elaine Chao, speak with supporters at a Republican dinner in Winchester, Ky., on Saturday, March 2, 2013. A libera
U.S. Sen. Mitch McConnell, right, and his wife, former Labor Secretary Elaine Chao, speak with supporters at a Republican dinner in Winchester, Ky., on Saturday, March 2, 2013. A liberal political group had made an issue of Chao’s ethnicity in messages distributed on Twitter earlier this month. (AP Photo/Roger Alford)