Former U.S. Sen. Chuck Hagel, R-Neb., speaks at the White House on Monday after President Obama nominated him to replace U.S. Defense Secretary Leon Panetta. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images

Sen. Jim DeMint's endorsement has become the gold standard for true blue conservatives seeking a Senate seat. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images

Some Republicans are betting that President Obama won't push for a Susan Rice nomination if it could jeopardize negotiations with the GOP on things like the budget, or immigration. Andrew Burton/Getty Images hide caption

itoggle caption Andrew Burton/Getty Images

Sen. Lindsey Graham (R-SC), shown in a June 29 file photo, says he will vote for President Obama's Supreme Court nominee, Elena Kagan. (AP Photo/J. Scott Applewhite) J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP