Rick Santorum, a former Republican presidential candidate, prepares to speak at the National Rifle Association convention in St. Louis on Friday. Several delegates said they would back Mr. Santorum until he endorsed another candidate. (Associated Press)
Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the National Rifle Association convention in St. Louis, Friday, April 13, 2012. (AP Photo/Michael Conroy)
Virginia Attorney General Ken Cuccinelli, left, accepts the "Defender of the Constitution Award" from National Rifle Association President David Keene, center, at the Conservative Political Action Conference (CPAC) held at the Marriott Wardman Park, Washington, DC, Thursday, February 9, 2012. The annual political conference draws thousands of supporters and prominent conservative figures. (Andrew Harnik / The Washington Times)
Virginia Attorney General Ken Cuccinelli, left, speaks while accepting the "Defender of the Constitution Award" from National Rifle Association President David Keene, right, at the Conservative Political Action Conference (CPAC) held at the Marriott Wardman Park, Washington, DC, Thursday, February 9, 2012. The annual political conference draws thousands of supporters and prominent conservative figures. (Andrew Harnik / The Washington Times)
Virginia Attorney General Ken Cuccinelli speaks while accepting the "Defender of the Constitution Award" from National Rifle Association President David Keene at the Conservative Political Action Conference (CPAC) held at the Marriott Wardman Park, Washington, DC, Thursday, February 9, 2012. The annual political conference draws thousands of supporters and prominent conservative figures. (Andrew Harnik / The Washington Times)
Members of the audience watch as Virginia Attorney General Ken Cuccinelli accepts the "Defender of the Constitution Award" from National Rifle Association President David Keene at the Conservative Political Action Conference (CPAC) held at the Marriott Wardman Park, Washington, DC, Thursday, February 9, 2012. The annual political conference draws thousands of supporters and prominent conservative figures. (Andrew Harnik / The Washington Times)