Congestive heart failure is what I have been wondering about. I had a friend who had that problem and she coughed just like Hillary.
My precious Bob, a Cavalier King Charles Spaniel, is being treated for congestive heart failure. :( His cough is much more endearing than Hillary’s hack.
CHF occurred to me, too. I have a friend who has been so diagnosed and knew another who died of it who coughed for a long time. His doctor said COPD but he never got checked for that.
We can only hope.