Stephen Colbert is giving his former Comedy Central bosses a major thank-you, booking Jon Stewart’s The Daily Show replacement Trevor Noah for tomorrow night. Noah’s joining UN Secretary-General Ban Ki-Moon as guest on CBS’ Late Show With Stephen Colbert tomorrow night, along with musical performance by Chris Stapleton. Presumably, they’ll discuss tonight’s GOP debate, and viewers will get to see the degree to which Noah has gotten up to speed on the presidential election cycle.

On that subject, Comedy Central has put out a promo for Noah’s September 28 unveiling that addresses/ has fun with the South African’s relative inexperience covering this country’s presidential election cycle. That’s in marked contrast with his predecessor Stewart, who had 16 years experience on the Comedy Central late-night franchise, becoming a major voice in the process and the source of information on White House races by some younger viewers, to the dismay of traditional news outlets.