Season 4
What happened first, Ben and Leslie ending their relationship or Ben becoming Leslie's campaign manager?
Parks and Recreation
With Ben's encouragement, Leslie decides to run for city council, and the two end their relationship. Leslie hires Andy as her assistant. Patricia Clarkson appears as Ron's first ex-wife, "Tammy One", who uses her power as an IRS employee to trick Ron into thinking he's being audited and temporarily takes complete control over his life. Tom and Jean-Ralphio's company, Entertainment 720, quickly blows through massive amounts of promotional funding while performing little actual work; the company goes out of business and Tom returns to his old job. After struggling to move on both personally and professionally, Ben and Leslie get back together, and Ben sacrifices his job to save Leslie from losing hers. The scandal leads her political advisors to abandon Leslie's campaign, and the Parks Department volunteers to become her new campaign staff. Ben agrees to be Leslie's campaign manager. Leslie's ex-boyfriend Dave (Louis C.K.) reappears and unsuccessfully attempts to win Leslie back. Leslie's campaign faces myriad setbacks against her main opponent, Bobby Newport (Paul Rudd), and his famous campaign manager Jennifer Barkley (Kathryn Hahn). Ann and Tom begin an extremely rocky romantic relationship. April takes on more responsibility in the department, shouldering much of Leslie's usual work. In the season finale, Jennifer offers Ben a job in Washington, which he reluctantly accepts, and after the race is initially called for Newport, Leslie wins the position in a recount.