Thursday marked the one-year anniversary of Special Counsel Robert Mueller's Trump-Russia investigation, and The Late Show had a gift idea. Stephen Colbert said his "happy one-year anniversary of the Mueller investigation" present was this monologue, but "the Senate gave us all something big yesterday," 2,500 pages of testimony about that June 9, 2016 Trump Tower meeting between Donald Trump Jr., other top Trump campaign officials, and Russians promising dirt on Hillary Clinton. President Trump and his eldest son have both insisted the president did not know about the now-infamous meeting, Colbert said, "but the transcript of his testimony shows that after Don Jr.