Seeing as she retired in 1989 she was of course not a parliamentary member of the DA.
You need to try harder - Mac could do better than that.
You need to try harder - I never said she was not a parliamentary member of the DA.
She was never a member of the DA - of any sort. Mandela, and many other retired ANC members, remain members of the ANC, despite being retired, so that's irrelevant.