I think he made mistakes supporting the wrong people in the past and knows he was wrong. I understand this; I voted for Gore in 2000 because I was blind to the idiocy of the Dems until a hole was blasted through the skyline of my beloved city and I watched people (leftists call them "little Eichmans")jump to their deaths. Now I am a staunch conservative and recognize my folly. Maybe he experienced something similar, I don't know. But only God knows for sure what is in a person's heart and our records will be laid before him on Judgement Day.
Welcome home.