The United States of Tara will dissolve at the end of season 3 -- Showtime has pulled the plug. The cable network will renew Nurse Jackie, headlined by Edie Falco.

Jackie is averaging 2.8 million viewers, while Tara is down to less than 1 million. Toni Collette, the title star in Tara, has received three Emmy nods and one win while on the series. United States of Tara is currently playing out its last hurrah on Monday nights.