Liz Cheney walks off the stage with her father, former Vice President Dick Cheney, after addressing the Conservative Political Action Conference in 2010. Cliff Owen/AP hide caption

itoggle caption Cliff Owen/AP

A worker guides a crane in Watford City, N.D. Oil production has tripled in five years, leading to rapid growth in some of the state's counties. Matthew Staver/Bloomberg via Getty Images hide caption

itoggle caption Matthew Staver/Bloomberg via Getty Images

The scandals affecting the Obama administration could make some would-be candidates leery of running for political office. Olivier Douliery/Pool/Getty Images hide caption

itoggle caption Olivier Douliery/Pool/Getty Images

Former South Carolina Gov. Mark Sanford arrives to give his victory speech Tuesday in Mount Pleasant, S.C. Sanford won back his old congressional seat in the state's 1st District in a special election. Rainier Ehrhardt/AP hide caption

itoggle caption Rainier Ehrhardt/AP