It seems to me that Trump was not a good Christian for most of his life but I also believe he has become one in his older days.
I have an Uncle who was wild as a young man. Us kids loved him because he was always up to something interesting. In his latter days he became very conservative.
Of course it is better to start out right but how you finish is what counts.
Robertson of Duck dynasty was wild, owned a bar and catted around as I understand it. His wife gave a achoice, he chose her and Christ.