Sen. Elizabeth Warren, D-Mass., left, Secretary of State Hillary Rodham Clinton, center, and Sen. John McCain, R-Ariz., right, are all smiles as they introduce Senate Foreign Relations Chairman John Kerry, D-Mass., seated at left, at his confirmation hearing to become the nation's next top diplomat, replacing Clinton, on Capitol Hill in Washington, Thursday, Jan. 24, 2013. (AP Photo/J. Scott Applewhite)
