Second City's laugh-packed new main-stage revue takes aim at the cult of Obama, spoofing the candidate's celebrity appeal and tweaking his attempt to link himself to Lincoln. Senator Clinton takes a hit too, in a hilariously nasty skit in which she tries to take out a contract on her rival. But most of the sketches focus on staples of the form: bickering married couples, horny college students, TV newscasters, sports mascots. What sells the comedy is the near perfect blend of tight timing and improvisational spontaneity exhibited by director Matt Hovde's crack ensemble of writer-performers: Joe Canale, Ithamar Enriquez, Molly Erdman (who does a mean Clinton impersonation), Brian Gallivan, Brad Morris, and Amber Ruffin. a Open run: Tue-Thu 8 PM, Fri-Sat 8 and 11 PM, Sun 7 PM, Second City, 1616 N. Wells, 312-337-3992, $18-$24.