CHESTER, Pa. (AP) -Gotta make time to laugh in a campaign – and court the youth vote.

In the midst of a mad dash toward the election, Democratic presidential nominee Barack Obama will make time Wednesday to appear on Comedy Central’s “The Daily Show” with its host, Jon Stewart.

The satirical news review, which covers the election under the banner of “Indecision 2008,” offers candidates a chance to show off their ability to be humorous if they can respond off the cuff.

Stewart also tends to put candidates on the spot on news of the day.

Obama will tape his appearance via satellite during a campaign swing in Florida on Wednesday. The segment is scheduled to air at 11 p.m. EDT.

This will be Obama’s fourth time on the show. He last appeared on April 21, the eve of the Democratic primary in Pennsylvania.

Obama’s Republican competition, John McCain, has been a guest on Stewart’s show, too.

Both candidates will be making the most of TV on Wednesday. Obama has bought 30 minutes of prime time to make the case for his candidacy and discuss the economy; the program will air on CBS, NBC and Fox. McCain will be interviewed on CNN’s “Larry King Live.”