It’s hard to call Jon Stewart a genius without him just laughing at you. But if you look at the overall history of that show, the way that he did it, who he interviewed, how fearless he was and how beloved he was, you would have to say there was genius involved to pull it off so magnificently.

Richard Lewis, about Jon.

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Jon Stewart and ‘The Daily Show’: 9 Essential Moments
As Jon Stewart’s 16-year run on “The Daily Show” comes to a close, writers, producers and guests look back on key moments and reflect upon his legacy.
By Jeremy Egner, Dave Itzkoff and Kathryn Shattuck

That Mindy Kaling quote is from this excellent article, which also has a bunch of quotes from former colleagues, friends and guests.

It is the sharpest, cleverest, most tuned in comedy audience of any show I’ve been on anywhere in the world, and that’s because of the culture Jon has nurtured. If you’re smart from the beginning, you get people who like smart stuff, and you can do even smarter stuff. It’s a really clever symbiotic evolution.
—  Ricky Gervais on Jon Stewart and The Daily Show (x)

140,000 people have signed a petition for Jon Stewart to host a presidential debate 

“Jon Stewart is more than qualified to tackle the moderating job,” the petition reads. “Over the last 16 years, Jon Stewart has played an influential and iconic role in covering U.S. politics and media. We believe he should continue that tradition as a moderator at one of the 2016 Presidential Debates." While it may seem like a long shot, a grassroots petition to the Commission on Presidential Debates worked in 2012.