Though it's been reported that the Senatorial plotlines of Episode III were all cut out of the film to keep the focus on Anakin's story, almost all of those supporting Senators are still in the film. The starwars.com databank recently added such Senators as Chi Eekway, Terr Taneel, Nee Alavar, Mon Mothma, Giddean Danu, Malé-Dee, Fang Zar, Meena Tills, and Fema Baab to its encyclopedic entries, and they are all on that platform. Watch for them.