In addition to Mr. Specter and Mr. DeWine and Mr. Hagel , several other Republican senators who have criticized the program or taken an interest in the legislation also participated or sent staff to the meeting , including Lindsey Graham of South Carolina ; Olympia J. Snowe of Maine ; Jon Kyl of Arizona ; Pat Roberts of Kansas , who is chairman of the Intelligence Committee ; and Mitch McConnell of Kentucky , the Republican whip .