I was just reading an interview with Carrie Fisher in which she was relating to her time at a psych facility called Silver Hills. She said that while she was there a US president was also there and did not give who it was. The choices are Carter, GHWB, Clinton or GWB. I am not sure of the year but somewhere between 2005 and 2011. It had to have been Clinton.
If it was a psych ward, maybe it was Kennedy:
(Bubba Ho-Tep)