hand. reporter: when bruno was 3 months old he was diagnosed with tra vette s syndrome, a vision described by experts as a rare and intractable type of epilepsy. it s hard to manage with medication pap good day, it s 30. 30 seizures a day. that s a good day for us. a bad day will be 300 seizures a day. reporter: she says she has tried every treatment legally available in florida, but nothing has worked. she now centers her hopes on medical marijuana. i ve heard it has helped other children. why can t it help my child? reporter: the constitutional amendment effort to legalize medical marijuana in the sunshine state is being led by a group calmed united for care. the group believes it has collected more than 683,000 signatures needed to get on the ballot. you know, we re not asking o to to let marijuana be a recreational use here. we re asking for medical marijuana.