Should I claim a mortgage credit for a house that I am on the mortgage for, but I do not pay the mortgage for it?

My daughter and her fiance purchased a home in 2017, but I had to be added to the mortgage because my daughter had lost her job a month before closing. Currently, the mortgage is in my name and her fiance's name but they make all the mortgage payments and they also payed the down payment. So, do I need to claim the mortgage interest on my taxes or only her fiance?