That's interesting to think about. On the one hand, it sounds absurd to say that a medical procedure could influence someone's future political beliefs. On the other hand, would that sound absurd in 1,000 years? We're really in the very beginnings of understanding the human brain.
I'm not a doctor, but I could probably influence someone's political beliefs through medication, at least for the duration of treatment, and probably with aftereffects lasting far longer. $20 per treatment, several treatments per month. ((RS)-1-(benzo[d][1,3]dioxol-5-yl)-N-methylpropan-2-amine)