Doug was also there "The Late Show With Stephen Colbert" (Credit: CBS) Presidents past, present and future were all in attendance at Jimmy Carter’s state funeral on Thursday morning — or, as Stephen Colbert dubbed them on Thursday night, the “Marvel Presidential Universe.” The nation’s 39th president, Carter died on Dec. 29 at the age of 100, surpassing Ronald Reagan as the oldest American president. His funeral was carried on all the major news networks, with some people stunned at who was