It all started when The Late Show dropped a tweet in reference to one of Stephen Colbert's opening jokes on Friday.
If you haven't been following, pharma-bro Martin Shkreli is in the news again for endorsing the price spike of an EpiPen made by Mylan Pharmaceuticals that went from less than $100 to $608.61.
Martin Shkreli took notice to The Late Show tweet and responded to the joke. Soon after, Stephen Colbert (from his personal Twitter) responded to Shkreli in very Colbert-like fashion.
"At the risk of being a wet blanket, Stephen refuses to engage in any kind of yellow journalism, despite the torrent of PEOTUS stories flooding the country."
Specifically, Colbert dives in on a little rant about how he thinks that Trump thinks Presidents get the weekends off--or least that big celebration that'll follow Inauguration Day on Friday.