In an interview with The Guardian, Stewart says there were a number of factors, including the desire to spend more time with his wife and their two children, ages 9 and 10. "It's not like I thought the show wasn't working any more, or that I didn't know how to do it," Stewart tells The Guardian. "It was more, 'Yup, it's working. But I'm not getting the same satisfaction.'"
It may be surprising to some longtime Daily Show fans that another reason behind Stewart's decision was a lack of enthusiasm about covering another presidential election. "I'd covered an election four times, and it didn't appear that there was going to be anything wildly different about this one," he tells The Guardian. "It was a combination of the limitations of my brain and a format that is geared towards following an increasingly redundant process, which is our political process."
Stewart has no doubt that the show will do fine under his successor, Trevor Noah. "Really, the value of this show is so much deeper than my contribution," he tells The Guardian. "If Oprah can leave and the world still spins, I honestly think it will survive me."
Read Stewart's full interview with The Guardian here.