Moderates triumphed at the '76 convention but their candidate, Ronald Reagan, lost the general election in the fall, Anthony Camerano/AP hide caption

itoggle caption Anthony Camerano/AP

Koch served as mayor for three terms (1978-89). Ken Rudin collection hide caption

itoggle caption Ken Rudin collection

NPR Legal Correspondent Nina Totenberg on stage at the Sixth & ISynagogue for a pre-inauguration Political Junkie Road Show. Madhulika Sikka via Instagram hide caption

itoggle caption Madhulika Sikka via Instagram

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