I was with Amy on her reply until she said "you could have discussed this with him". That would be the last thing they should do. What is there to discuss? "I'm a very tolerant person and you are free to have your own views but I don't want to hire you because of how you voted. What's wrong with you"? What possible value is there to any discussion? You either resolve to keep the relationship on a businesslike basis or you don't hire the best person for the job and resolve to punish someone for their political views.