Jon Stewart

Host Jon Stewart at "The Daily Show with Jon Stewart" covers the Midterm elections in Austin with "Democalypse 2014: South By South Mess" at ZACH Theatre on Oct. 28, 2014, in Austin, Texas.

Jon Stewart

Jon Stewart speaks onstage at MusiCares Person Of The Year Honoring Bruce Springsteen on Feb. 8, 2013, in Los Angeles.

Jon Stewart

Jon Stewart of "The Daily Show With Jon Stewart poses in the press room after winning outstanding variety, music or comedy series 2011 during the 63rd Annual Primetime Emmy Awards held at Nokia Theatre L.A. LIVE on Sept. 18, 2011, in Los Angeles.

Jon Stewart

Jon Stewart, host of the 80th Academy Awards, poses for a photo at the Kodak Theater in the Hollywood section of Los Angeles, Wednesday, Feb. 20, 2008. He first hosted the event in 2006.

Jon Stewart

Jon Stewart hosts the 78th Academy Awards telecast March 5, 2006. He returns on Sunday, Feb. 24, 2008, as host of the 80th Academy Awards, which will be televised live in more than 200 countries worldwide.

Jon Stewart

Jon Stewart, host of "The Daily Show," poses for a picture Feb. 17, 2006, in New York.

Jon Stewart

Jon Stewart is an old hand at hosting awards shows. Here, he holds onto his clothes after going through a mock security check as he arrives on stage to host the 44th annual Grammy Awards, Feb. 27, 2002, in Los Angeles.

Jon Stewart

Jon Stewart, left, Paula Zahn and New York Mayor Michael Bloomberg celebrate onstage at the Grand Opening Ceremony of the Time Warner Center at Columbus Circle on Feb. 4, 2004.

Jon Stewart

Jon Stewart reads from "The Brand New Kid" at a celebrity read-aloud event Feb. 9, 2004, at Lincoln Center in New York City. Several actors and TV personalities read excerpts from children's books that shared the common theme of respect.

Jon Stewart

Former President Bill Clinton speaks with Jon Stewart on "The Daily Show" Aug. 9, 2004, in New York City.

Jon Stewart

Democratic presidential candidate Sen. John Kerry, D-Mass., goes eye to eye with Jon Stewart during a visit to the "The Daily Show" Aug. 24, 2004.

Jon Stewart

Jon Stewart poses with his Emmy for outstanding variety, music or comedy series for "The Daily Show" during the 56th Annual Primetime Emmy Awards on Sept. 19, 2004, at the Shrine Auditorium in Los Angeles.

Jon Stewart

Ellen DeGeneres talks with Jon Stewart during a taping of "The Ellen DeGeneres Show" at NBC Studios in Burbank, Calif., Sept. 20, 2004.

Jon Stewart

Jon Stewart is seen at Barnes & Noble in Union Square to sign the book "America" on Oct. 8, 2004, in New York City. The book was written by Stewart and his team at "The Daily Show."

Jon Stewart

Stewart talks to the audience during warm-up for a taping of "The Daily Show" on April 6, 2005, in New York City.

Jon Stewart

News anchor Anderson Cooper, left, and Jon Stewart arrive for Time magazine's "Time 100" list of the most influential people in the world on April 19, 2005, in New York City.

Jon Stewart

Jon Stewart poses with a Muppet named Kami on May 16, 2005, after winning a Peabody Award in New York. In giving the award, the sponsors said: "For its unmatched wit and unorthodox approach in putting the 2004 presidential election in perspective without diminishing its importance, a Peabody Award goes to 'The Daily Show with Jon Stewart: Indecision 2004.' "

Jon Stewart

Host Jon Stewart poses with his Emmy for outstanding variety, music or comedy series and outstanding writing, variety, music or comedy series in the press room at the 57th Annual Emmy Awards Sept. 18, 2005, in Los Angeles.

Jon Stewart

Jon Stewart accepts the award for best writing in a variety, music or comedy program for "The Daily Show with Jon Stewart" onstage at the 57th Annual Emmy Awards on Sept. 18, 2005, in Los Angeles.

Jon Stewart

Jon Stewart and his wife, the former Tracey McShane, attend the Comedy Central party after the Emmy ceremony in Los Angeles on Sept. 18, 2005. Tracey, a former veterinary technician, gave birth to their first child, a boy, Nathan Thomas Stewart, on July 3, 2004. Their second child, a girl, Maggie Rose, was born Feb. 4, 2006.

Jon Stewart

Jon Stewart and his wife, Tracey, celebrate at the Governor's Ball after the 55th Annual Primetime Emmy Awards on Sept. 21, 2003, at the Shrine Auditorium in Los Angeles. His show won for both outstanding writing for a variety, music or comedy program and outstanding variety, music and comedy series.

Jon Stewart

Jon Stewart speaks with the press at the Quill Book Awards on Oct. 11, 2005, in New York City.

Jon Stewart

Howard Stern dances with Jon Stewart during "The Daily Show" on Dec. 13, 2005, in New York City.

Jon Stewart

Jon Stewart at the 44th annual Grammy Awards held at the Staples Center In Los Angeles, Feb. 27, 2002.

Jon Stewart

Jon Stewart attends a benefit evening for the Michael J. Fox Foundation for Parkinson's Research Dec. 8, 2001 at Roseland Ballroom in New York.