Lousy ratings perhaps ?
It’s a business.
Like when airlines drop unprofitable routes.
Gutfeld has a nice lead over Colbert's numbers. Colbert has been leading the pack over Kimmel and Fallon. Even though Colbert has some nice viewership numbers, it has to translate into advertising revenue for CBS. He may have the same problem Joy Reid had, a big audience but mostly older folks with a bad case of TDS that don't buy anything...