"Our" research vs actual research. The writer doesn't have research, he has a hope, and ties it to this study: [psycnet.apa.org]
While there may be a link to ED and conservative voters because the conservative base is generally older.
The 300% increase in reports of bi-polar disorder in leftists vs the right, however, is far more compelling and adds a lot of clarity to behavior here.
I'm sure Dane is on to something also.