Charlotte Mayor Anthony Foxx addresses the Democratic National Convention in Charlotte, N.C., on Sept. 4. President Obama on Monday will nominate Foxx as his new transportation secretary. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Sen. John Kerry, D-Mass., at his confirmation hearing last week. Zhang Jun /Xinhua /Landov hide caption

itoggle caption Zhang Jun /Xinhua /Landov