The United States Health and Human Services Department says that if the danger is not immediate, but you suspect that elder abuse has occurred or is occurring, please tell someone. Relay your concerns to the local adult protective services, long-term care ombudsman, or the police.
Unrelated, here is another video of a discombobulated Joe Biden in public, where he needs to be saved again by his caregiver, Jill Biden. Was it before he confused another blonde for his wife? Let's examine.