Stephen Colbert began hosting The Colbert Report in January 2005, but it wasn’t until last month that he featured, as an official guest on his show, the man who gave him the job: Daily Show anchor Jon Stewart. Stewart was promoting his new movie, Rosewater, but also clearly was celebrating a decade of their joint success, as the two close friends had spent much of the time trading Emmy wins. Now, in December, Colbert begins the final three weeks of his tenure on The Colbert Report – starting with tonight’s interview with Sen. John McCain.