The Late Show with Stephen Colbert Season 4 Episode 119 Paul Giamatti, Doug Jones, Aparna Nancherla, Alexandria Ocasio-Cortez ( Air Date 2019-03-20 ) Genre Comedy, Talk category. Overview "Stephen welcomes actor Paul Giamatti, Senator Doug Jones, comic Aparna Nancherla, and Rep. Alexandria Ocasio-Cortez.".