He returns to plug one of the issues that he is passionate about and that is to obtain appropriate health care for those 9/11 emergency first responders who got sick breathing in all the dust from the collapsed building as they went about trying to rescue people. He is trying to shame senate majority leader Mitch McConnell and other legislators into doing the right thing.
(This clip aired on December 7, 2015. To get suggestions on how to view clips of The Daily Show and The Nightly Show outside the US, please see this earlier post. If the videos autoplay, please see here for a diagnosis and possible solutions.)