Mike shows up at Caitlin's to announce that he's met someone. Meanwhile, the mayor is dating a judge who's not yet divorced. Charlie suggests that the mayor break it off, but after getting some advice from Mike, he decides to let the mayor do what makes him happy. Charlie impresses Caitlin but Mike interrupts again to announce his engagement.

The mayor has a tree cut down to impress his new girlfriend. Unfortunately, it was a tree planted by George Washington in 1796. Meanwhile, Charlie has a one-night stand, who turns out to be a rival mayoral candidate's campaign manager. Mike helps out with crisis control. Charlie and Caitlin decide to be friends for the time being, while Mike announces his return to City Hall.

The mayor prepares to debate his opponent, while Charlie and Jennifer, his opponent's campaign manager have been dating for 3 weeks. The mayor wants Charlie to dump her, but he doesn't. When the mayor visits Charlie in the middle of the night to share something that may be damaging to his campaign, Jennifer may have overheard it. Meanwhile, Paul and Robin become involved; Paul thinks it's a relationship, while Robin thinks it's a fling.

Charlie discovers that Jennifer's ex is a woman. He becomes jealous when watching her be affectionate with Caitlin, something Caitlin dismisses until Jennifer kisses her on the lips. Claudia and Paul's divorce settlement may be affected by the mayor's bickering with Judge Claire.

Charlie endangers his relationship with Jennifer when he realizes that he loves his staff more than her. The Mayor decides to propose to Claire, but she says no because he's in the public eye and must be dishonest. This causes problems, because it's Election Day, and a truth-telling campaign by the Mayor could jeopardize his re-election.