Mark is no stranger to making political statements, and in 2013, he got candid about his mother's abortion in a letter he wrote for a reproductive rights rally:
"I am a man. I could say this has nothing to do with me. Except I have two daughters and I have a mother who was forced to illegally have an abortion in her state where abortion was illegal when she was a very young woman. It cost $600 cash. It was a traumatizing thing for her. It was shameful and sleazy and demeaning. When I heard the story I was aghast by the lowliness of a society that would make a woman do that. I could not understand its lack of humanity; today is no different."