The main way in which these two were related is that the Nullification Crisis stemmed from federal tariffs, which South Carolina deemed unfair and unconstitutional because they limited trade.
One of the messages being portrayed through touch is a message of comfort. The women in the blue shirt has a gentle hand laid on the women crying, and this is a way of comforting the woman in the pink shirt. The woman in the pink shirt is also communicating that she needs/wants comforting by leaning into the woman in the blue shirt. I hope that helps!