Eddie Arruza serves as guest host for tonight's edition of Chicago Tonight: The Week in Review. Topics: Daley stuns the political world by announcing he will not seek a seventh term, and several aldermen and other public officials are hinting that they want the job. President Obama says Rahm Emanuel would make a terrific Mayor. And Mark Kirk and Alexi Giannoulias are neck and neck in the U.S. Senate race while Governor Quinn tries to close in on gubernatorial front-runner Bill Brady. And in sports, pessimism abounds as the Bears get ready to kick off the regular season.