Homer listens to conservative radio host Birch Barlow while driving the kids to school.

Bart lies about his school project, promising a fireworks display at school.

Homer hears Sideshow Bob call into Birch Barlow's show from prison.

Birch Barlow makes freeing Sideshow Bob his mission on air.

Mayor Quimby pardons Sideshow Bob, who is released from prison.

Mr. Burns and Republicans recruit Sideshow Bob as their mayoral candidate.

Sideshow Bob campaigns at Springfield Elementary, targeting Bart.

A campaign ad for Mayor Quimby airs, showing his popularity.

Sideshow Bob promises to build the Matlock Expressway and listen to anecdotes.

The mayoral debate features Sideshow Bob and a sick Mayor Quimby.

Sideshow Bob wins the mayoral election with 100 percent of the vote.

Mayor Bob gives the Simpsons 72 hours to vacate their house for the expressway.

Principal Skinner demotes Bart to kindergarten as punishment.

Lisa gets the election records and discovers all voters voted for Bob.

Smithers secretly meets Bart and Lisa to give them a lead on the election fraud.

Bart and Lisa discover dead people voted for Sideshow Bob in the cemetery.

Bob publicly admits to rigging the election after being confronted by Bart and Lisa.

Bob is arrested for election fraud, and the Simpsons keep their house.

Sideshow Bob vows revenge from prison while rowing with other inmates.